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* Penelope Mouse of the ''Franchise/SlyCooper'' games is an egregious example. She is introduced in [[VideoGame/Sly3HonorAmongThieves the third game]] as a smart NiceGirl who begins dating Bentley at the end [[PairTheSmartOnes because of]] [[BirdsOfAFeather their similar traits]]. However, [[VideoGame/SlyCooperThievesInTime the controversial fourth game]] inexplicably retcons her into a greedy BitchInSheepsClothing who only wanted to use Bentley to become rich, giving him a reason to dump her.

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* Penelope Mouse of the ''Franchise/SlyCooper'' ''VideoGame/SlyCooper'' games is an egregious example. She is introduced in [[VideoGame/Sly3HonorAmongThieves the third game]] as a smart NiceGirl who begins dating Bentley at the end [[PairTheSmartOnes because of]] [[BirdsOfAFeather their similar traits]]. However, [[VideoGame/SlyCooperThievesInTime the controversial fourth game]] inexplicably retcons her into a greedy BitchInSheepsClothing who only wanted to use Bentley to become rich, giving him a reason to dump her.


* Gale Hawthorne might be one in ''Literature/TheHungerGames''. His personality is the same in the third book, but his beliefs get more pronounced, he clashes more often with Katniss, and he ends up inadvertently [[spoiler:killing Primrose by having designed the trap that Coin deployed, which took Prim's life]]. [[WordOfGod Suzanne Collins]] has never made it a secret that Gale was not supposed to be a love interest, and was in fact Katniss' cousin in the original version of the books, but [[ExecutiveMeddling the publishers demanded a love triangle in the wake of Twilight]]. Whether this makes it more likely that Gale was deliberately derailed or not is up for debate.


* Some writers at DC seem to '''adore''' Franchise/{{Superman}}[=/=]Franchise/WonderWoman, as evidenced by the fact that many different {{Elseworld}}s either derail Lois Lane to get rid of the marriage, or simply [[MurderTheHypotenuse kill her off entirely]]. A stand-out example is ''ComicBook/JLAActOfGod'', where a mysterious event de-powers every non-technological superbeing on the planet and made all magically powered heroes disappear, after which Lois breaks up with Clark ''because'' he lost his powers. Granted, the fact that Clark is busy being [[{{Wangst}} Angsty McWhineNCry]] about the whole thing really didn't help matters, but still. And of course, Wonder Woman, despite being, you know, ''magically powered'', is still around for Clark to lean on. And now, thanks to the Comicbook/{{New 52}} reboot, Clark and Lois have ''never'' been married, thus allowing DC to ''finally'' hook Superman and Wonder Woman together. Of course, this is lampshaded in the final issue of ''Comicbook/JusticeLeagueInternational'' when a time travelling Comicbook/BoosterGold attempts to warn what's left of the team of something in the future, only to be interrupted by the two's first kiss and gawking in utter shock.
** Poor Billy Batson also gets this treatment in ''ComicBook/SupermanDistantFires'', where he goes from a boy scout on par with Superman to a megalomaniac who [[spoiler: kills Diana when she refuses to get back together with him]] and wants to take over the world.
* The infamous bitchslap that sent [[Comicbook/ArchieComicsSonicTheHedgehog Sally Acorn]] into JerkSue territory has shades of this; after being a romantically entangled for many years, a supposed mandate came down ordering Sonic to not be in a permanent relationship, and the next thing readers knew, Sally was bitching out Sonic for not ditching his duties to be her consort, which led to him getting into a torrid LoveTriangle with Mina Mongoose and Fiona Fox. However, after a change of writers the love triangle was dissolved and Sally was made Sonic's one-and-only canonical love interest (at least, until the ContinuityReboot happened).
* Similar to Chuck Austin, Creator/GrantMorrison went this way with his ''X-Men'' run. Creator/JoeQuesada wanted to break up Comicbook/{{Cyclops}} and Jean, so he told Grant to kill her off. Perfectly normal in a super hero comic, but instead of just letting her die in a good, heroic way or even stuffing her in a fridge like most writers do, he decided the best way was to derail Jean, Scott, and Emma Frost in order to make a "love triangle" before killing off Jean so Scott can get together with Emma. To do so, he had Cyke, currently in a dark place following his merger with Apocalypse, seek therapy to deal with his issues, which Emma provides with her previously-never-mentioned PHD in psychology. Then, she has psychic mind sex with him to let him live out his deepest sexual fantasies that Jean would never do so, while projecting the image of Jean. Jean at first is rightfully pissed at the two, especially Emma, but she receives no punishment since she 'did it out of love' for Scott, despite the fact the [[StrangledByTheRedString two had never previously had much interaction beyond the psychic sex]], and ''Jean'' is called out for having no sympathy for her. So, Jean forgives them all, only to be killed by Magneto despite being the Phoenix (and as such, immortal) at the time with Jean then pushing Scott beyond the grave to move on. So in short, who was supposed to be 'in the right' was emotionally manipulating a man and is rewarded with becoming the second in command, the ''real'' victim of the situation is made out to be a boring and dull prude, and the man in the middle is essentially mind raped when he needed therapy (which he never got, possibly explaining his own latent CharacterDerailment) and ends up looking like a tool and a douche.

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* Some writers at DC seem to '''adore''' Franchise/{{Superman}}[=/=]Franchise/WonderWoman, as evidenced by the fact that many different {{Elseworld}}s either derail Lois Lane to get rid of the marriage, or simply [[MurderTheHypotenuse kill her off entirely]]. A stand-out example is ''ComicBook/JLAActOfGod'', where a mysterious event de-powers every non-technological superbeing on the planet and made all magically powered heroes disappear, after which Lois breaks up with Clark ''because'' he lost his powers. Granted, the fact that Clark is busy being [[{{Wangst}} Angsty McWhineNCry]] about the whole thing really didn't help matters, but still. And of course, Wonder Woman, despite being, you know, ''magically powered'', is still around for Clark to lean on. And now, thanks to the Comicbook/{{New 52}} reboot, Clark and Lois have ''never'' been married, thus allowing DC to ''finally'' hook Superman and Wonder Woman together. Of course, this is lampshaded in the final issue of ''Comicbook/JusticeLeagueInternational'' when a time travelling Comicbook/BoosterGold attempts to warn what's left of the team of something in the future, only to be interrupted by the two's first kiss and gawking in utter shock.
**
shock. Poor [[ComicBook/{{Shazam}} Billy Batson Batson]] also gets this treatment in ''ComicBook/SupermanDistantFires'', where he goes from a boy scout on par with Superman to a megalomaniac who [[spoiler: kills Diana when she refuses to get back together with him]] and wants to take over the world.
* The infamous bitchslap [[ArmorPiercingSlap bitchslap]] that sent [[Comicbook/ArchieComicsSonicTheHedgehog Sally Acorn]] into JerkSue territory has shades of this; after being a romantically entangled for many years, a supposed mandate came down ordering Sonic to not be in a permanent relationship, and the next thing readers knew, Sally was bitching out Sonic for not ditching his duties to be her consort, which led to him getting into a torrid LoveTriangle with Mina Mongoose and Fiona Fox. However, after a change of writers the love triangle was dissolved and Sally was made Sonic's one-and-only canonical love interest (at least, until the ContinuityReboot happened).
* Similar to Chuck Austin, Creator/GrantMorrison went this way with his ''X-Men'' run. Creator/JoeQuesada wanted to break up Comicbook/{{Cyclops}} and Jean, ComicBook/JeanGrey, so he told Grant to kill her off. Perfectly normal in a super hero comic, but instead of just letting her die in a good, heroic way or even stuffing her in a fridge like most writers do, he decided the best way was to derail Jean, Scott, and Emma Frost ComicBook/EmmaFrost in order to make a "love triangle" before killing off Jean so Scott can get together with Emma. To do so, he had Cyke, currently in a dark place following his merger with Apocalypse, seek therapy to deal with his issues, which Emma provides with her previously-never-mentioned PHD in psychology. Then, she has psychic mind sex with him to let him live out his deepest sexual fantasies that Jean would never do so, while projecting the image of Jean. Jean at first is rightfully pissed at the two, especially Emma, but she receives no punishment since she 'did it out of love' for Scott, despite the fact the [[StrangledByTheRedString two had never previously had much interaction beyond the psychic sex]], and ''Jean'' is called out for having no sympathy for her. So, Jean forgives them all, only to be killed by Magneto despite being the Phoenix (and as such, immortal) at the time with Jean then pushing Scott beyond the grave to move on. So in short, who was supposed to be 'in the right' was emotionally manipulating a man and is rewarded with becoming the second in command, the ''real'' victim of the situation is made out to be a boring and dull prude, and the man in the middle is essentially mind raped when he needed therapy (which he never got, possibly explaining his own latent CharacterDerailment) and ends up looking like a tool and a douche.



* In ''Film/KickAss2'', Dave's girlfriend Katie, having been thoroughly established as a genuine NiceGirl in the first film, is suddenly derailed into a jerk that has been cheating on him, right before she dumps him. It's possible that having Katie as Dave's girlfriend in the movie wouldn't have meshed with the story in [[ComicBook/KickAss the comic]] where they never were together (in fact, she was already seeing someone and when Dave learned all of this from her, her beau punched him in the face). This is to facilitate his romance with Hit-Girl.

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* In ''Film/KickAss2'', Dave's girlfriend Katie, having been thoroughly established as a genuine NiceGirl in [[Film/KickAss the first film, film]], is suddenly derailed into a jerk that has been cheating on him, right before she dumps him. It's possible that having Katie as Dave's girlfriend in the movie wouldn't have meshed with the story in [[ComicBook/KickAss the comic]] where they never were together (in fact, she was already seeing someone and when Dave learned all of this from her, her beau punched him in the face). This is to facilitate his romance with Hit-Girl.



* Perhaps the swiftest use of this trope is used in Literature/TheRomanMysteries. Throughout ''The Scribes of Alexandria'' Nubia spends months travelling to a Nubian settlement in the hopes that she'll find her own people there. She is eventually reunited with her betrothed, only to be torn between marrying him or returning to Rome with her friends. It's a tough decision, but luckily her betrothed goes from a nice guy to a potential wife-beater within the space of a paragraph.

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* Perhaps the swiftest use of this trope is used in Literature/TheRomanMysteries.''Literature/TheRomanMysteries''. Throughout ''The Scribes of Alexandria'' Nubia spends months travelling to a Nubian settlement in the hopes that she'll find her own people there. She is eventually reunited with her betrothed, only to be torn between marrying him or returning to Rome with her friends. It's a tough decision, but luckily her betrothed goes from a nice guy to a potential wife-beater within the space of a paragraph.



* In ''Literature/TheLegendOfDrizzt'', Wulfgar was originally the main character and Cattie-brie his LoveInterest. When Drizzt became the BreakoutCharacter and both [[FanPreferredCouple the fans]] and the author preferred Drizzt/Cattie-brie, Wulfgar was first killed off to allow the ship to sail, and then when ExecutiveMeddling made Creator/RASalvatore bring him back, it was after seven years of torture and Wulfgar was badly shell-shocked, causing him to mistreat Catti-brie and degenerate into a drunken thug. By the time he was over ''that'', Drizzt and Catti-brie were together for keeps.

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* In ''Literature/TheLegendOfDrizzt'', Wulfgar was originally the main character and Cattie-brie his LoveInterest.{{Love Interest|s}}. When Drizzt became the BreakoutCharacter and both [[FanPreferredCouple the fans]] and the author preferred Drizzt/Cattie-brie, Wulfgar was first killed off to allow the ship to sail, and then when ExecutiveMeddling made Creator/RASalvatore bring him back, it was after seven years of torture and Wulfgar was badly shell-shocked, causing him to mistreat Catti-brie and degenerate into a drunken thug. By the time he was over ''that'', Drizzt and Catti-brie were together for keeps.



* One is in the US version of ''Series/QueerAsFolk'', where Justin leaves Brian for a much more romantic guy, who suddenly has an affair.
* ''Series/SexAndTheCity's'' Alexandr is one of the best examples of this trope, going from an amazing, sweet, and sensitive guy to a jerk who ignores Carrie and proves to be completely self-absorbed before leaving for Paris.
* Charlie in ''Series/UglyBetty'' went from sweet, likeable girl to jealous, two-timing harpy in no time. Then again, the show ''is'' partly a soap parody...
* Out of the blue, Tess on ''Series/{{Roswell}}'' was revealed to have been repeatedly brainwashing their friend and conspiring with their enemies so they could break up her and Max.
* Played straight in the BBC's ''Series/RobinHood''. Robin starts a relationship with Isabella, a seemingly intelligent, rational, and compassionate woman. However, halfway through the series, Isabella throws an inexplicable [[CharacterDerailment temper tantrum]], [[LoveMakesYouCrazy goes insane]] and [[LoveMakesYouEvil tries to kill him]] after Robin tells her that his mission must come before her. This is apparently done so that the writers can kick-start Robin's love story with Kate. Oh, and if you're wondering where Maid Marian is during all of this, [[spoiler:she was murdered by Isabella's brother last season]]. Even more irritating was the fact that Robin cites his commitment to England and his inability to have a normal life as the reasons for breaking up with Isabella. Yet he hooks up with Kate two episodes later, [[AesopAmnesia having completely forgotten his own reasons why it's not a good idea to be in a relationship]].

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* One is Subverted in favor of the dramatic route on ''Series/{{Battlestar Galactica|2003}}'', where Kara and Anders' relationship stays intact despite Kara's affair with Lee (Kara and Lee having been the FanPreferredCouple in the US version previous season).
* In ''Series/BlackLightning2018'', Anissa's girlfriend starts the show as loving and compassionate, and their relationship is loving and full
of ''Series/QueerAsFolk'', passion, to the point where Justin Anissa is comfortable telling her about her growing powers. Then, in episode 3, the girl inexplicably becomes jealous, paranoid, and racist, and Anissa suddenly claims that the relationship has been going downhill for awhile. No sign of that has been shown in the two previous episodes. All this seems to be done to allow Anissa to hook up with Grace, who might be more supportive of her becoming a superhero.
* ''Series/{{Charmed|1998}}'' derailed both lovers in the relationship at different times with Phoebe and Cole. The relationship went through a LOT of drama ([[spoiler:Cole became possessed by the Source of all evil, made Phoebe his queen and got her pregnant with a demonic baby which forced her to kill him]]). She ended season 4 still loving him but just afraid to use magic to resurrect him. Then the first episode of season 5 she suddenly blames him for everything that's gone wrong in her life and threatens to kill him over a bad dream she had. The writers then realised Cole was looking too sympathetic and abruptly made him go mad and evil and thus [[spoiler: had to be killed off permanently]].
* Happened to Eddie [=LeBec=], Carla's husband, on ''Series/{{Cheers}}''. They foreshadowed it for a few episodes, but transformed him from the nicest guy you'd ever want to meet, to a cheater who married the woman he had his affair with and never told Carla (it became public at his funeral). This was deliberate payback on part of the producers for Jay Thomas having insulted Rhea Perlman's attractiveness on national radio.
* Stuart Rosebrock on ''Series/{{Coach}}''; when he's introduced he has nothing but devotion to Kelly, [[DatingWhatDaddyHates despite Hayden not liking him]] and, though they have a few arguments during their dating & eventual marriage, are shown to be a good match. Then comes the season 4 premiere "The Kick Off & the Kiss Off," where he got a job on a popular kids show over the summer in Los Angeles, and suddenly, he comes back, [[TookALevelInJerkass loving LA and thinking he's too good for Minnesota]], having apparently met someone else on the show, and
leaves Brian Kelly behind just like that, despite him ''having shown nothing but love and affection for her before then.'' [[note]] Granted, this was because Kris Kamm was leaving the show, but there could've been a better way to have him leave. [[/note]]
* ''Series/DawsonsCreek'' has a tendency to do this to Pacey's girlfriends whenever they want him to get close to Joey. Andie, who's set up in Season 2 as his {{Adorkable}} soul mate, the first person who believes in him and helps him turns his life around, abruptly cheats on him in between seasons, then hammers the point home by cheating at an exam and lying about nearly being raped. Audrey, who, in Season 5, is portrayed as the first girl to be Pacey's equal, suddenly turns from a lovable party girl into a screwed-up alcoholic who ends up in rehab the following season.
* ''Series/DocMartin'': Louisa reunites with her ex-boyfriend, who accepts a job in London after asking her to marry him. So she dumps him because he's disingenuous about living a life together in their beloved village, and not so
much more because he's [[TheFundamentalist an insufferable Jesus freak]].
* ''Series/DowntonAbbey'': In series five, Anthony Gillingham suddenly becomes clingy, demanding and possessive of Mary (even giving the implied threat of ruining her reputation if she tries to break up with him) in order to have her warm up to Charles Blake.
* Repeatedly done on ''Series/TheDrewCareyShow'' as part of the central character's general run of bad luck. Nicki, his FormerlyFat fiancée, left after realizing how much weight she'd put on while they were together. Working class WrenchWench Sharon seemed perfect for Drew, but it was later revealed that Drew was in fact the other man when they meet her real boyfriend at a ballgame. The intended endpoint was a long-term thing with Kate, who was ironically derailed herself when Christa Miller ditched the show for ''Series/{{Scrubs}}''.
** When Drew started taking night classes, he met an older woman, and they started dating. There's a lot of fun at their expense over the age difference, but they seem like a happy couple. But then in her last appearance, she begins mothering Drew (when previously she had treated him like an adult). He didn't mind at first, until he [[{{Squick}} saw his mom's face during sex]], at which point they both agreed to end it.
* ''Series/DropDeadDiva'': Owen French, a sweet judge who dropped his own vacation plans to spend a
romantic guy, who time with Jane, suddenly has an affair.
* ''Series/SexAndTheCity's'' Alexandr is one of
becomes a spiteful and petty JerkAss after [[spoiler: Grayson kisses Jane on her wedding day]]. While Jane should have [[PoorCommunicationKills explained what]] [[IdiotPlot happened from the get-go]], when she finally does explain Owen refuses to forgive her for something that was not her fault and starts [[ReplacementGoldfish hitting on her best examples of this trope, going from an amazing, sweet, and sensitive guy to a jerk who ignores Carrie and proves to be completely self-absorbed before leaving for Paris.
friend.]]
* Charlie in ''Series/UglyBetty'' went from sweet, likeable girl to jealous, two-timing harpy in no time. Then again, the show ''is'' partly a soap parody...
* Out of the blue, Tess on ''Series/{{Roswell}}'' was revealed to have been repeatedly brainwashing their friend and conspiring with their enemies so
In ''Series/FamilyMatters'', Myra's ClingyJealousGirl behavior towards Steve is turned UpToEleven (Even after they could break up her and Max.
* Played straight
up) in the BBC's ''Series/RobinHood''. Robin starts final season to the point where she installed a spy cam in his glasses so she could watch him through a monitor in her bedroom. This so Steve, who'd been happily in a relationship with Isabella, a seemingly intelligent, rational, and compassionate woman. However, halfway through the series, Isabella throws an inexplicable [[CharacterDerailment temper tantrum]], [[LoveMakesYouCrazy goes insane]] and [[LoveMakesYouEvil tries to kill him]] after Robin tells her that his mission must come before her. This is apparently done so that the writers can kick-start Robin's love story Myra for years, could be paired with Kate. Oh, and if you're wondering where Maid Marian is during all of this, [[spoiler:she was murdered by Isabella's brother last season]]. Even more irritating was the fact that Robin cites his commitment to England and his inability to have Laura (whom he'd had a normal life as the reasons for breaking up with Isabella. Yet he hooks up with Kate two episodes later, [[AesopAmnesia having completely forgotten his own reasons why it's not unrequited crush on, played for comedy, for a good idea while, but by now, had ''long'' been dropped.)
* The writers of ''Series/{{Frasier}}'' saw this trope looming at them from a mile away and nipped it in the bud by never bothering to make Niles's RomanticFalseLead Mel Karnofski into a sympathetic character in the first place. From the very start she was both characterized and described as a slightly-kinder doppelganger of Niles's first wife [[TheGhost Maris]], a controlling, domineering, hysterical ManipulativeBastard and JerkAss extraordinaire (whom [[ShipperOnDeck all the characters despised]]), explaining Niles's attraction to her as a bad pattern (similar to how some women who leave an abusive boyfriend fall for men exactly like him over and over), instead of wasting time trying to make her into a person for whom Niles could fall for healthy reasons, but [[DieForOurShip the fans would inevitably vilify anyway.]]
* In ''Series/FreaksAndGeeks'', Sam is hopelessly smitten with cute [[AllGuysWantCheerleaders cheerleader]] Cindy Sanders. Toward the end of the show's first and only season, Cindy finally starts dating Sam, and they almost immediately learn that they have no common interests and don't have any fun together. The previously sweet-natured Cindy is also revealed
to be in (mildly) bitchy and manipulative, as well as a relationship]].bit vapid and dull.



* In ''Series/FamilyMatters'', Myra's ClingyJealousGirl behavior towards Steve is turned UpToEleven (Even after they break up) in the final season to the point where she installed a spy cam in his glasses so she could watch him through a monitor in her bedroom. This so Steve, who'd been happily in a relationship with Myra for years, could be paired with Laura (whom he'd had a completely unrequited crush on, played for comedy, for a good while, but by now, had ''long'' been dropped.)

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* In ''Series/FamilyMatters'', Myra's ClingyJealousGirl behavior towards Steve is turned UpToEleven (Even A regular occurrence on ''Series/GilmoreGirls'':
** Dean's wife Lindsay became a shrill harpy who overworks her husband as Rory suddenly becomes interested in Dean again (although Lorelai called her out on this one). Ironically, Dean would get derailed himself for the actor's exit from the show.
** Jason threatens to sue Richard
after they break up) he and Jason's father essentially destroy his livelihood, just in time for the Luke/Lorelai relationship to finally happen.
** Marty is at first a sweet classmate who takes an interest in Rory but she spurns his advances and he takes a long bus ride only to return as a huge Jerkass
in the final season last season.
* ''Series/{{Glee}}'':
** After [[OfficialCouple Rachel and Finn]]'s sort-of relationship hits a rut, she meets Jesse St. James, the lead singer of rival Glee club Vocal Adrenaline. Naturally he's her equal, understands her perfectly, etcetera. When he is very obviously TheMole, he admits that [[BecomingTheMask he's starting to have feelings for her]]. Right after ''that'' happens, of course, he becomes utterly cruel with the [[spoiler: egg-assault in the parking lot and him acting like she somehow did something to deserve it]], especially since the last time we saw them they were perfectly happy together and she had done nothing to upset him. It's clear he's only doing it because he wants to go back to Vocal Adrenaline so that he can win a fourth national show-choir championship, and needs to prove his loyalty
to the point where team above all else. [[spoiler: But it may be subverted. TheBusCameBack with him on board, and he ends up apologizing to Rachel and is obviously still very much in love with her. However, she installed a spy cam didn't care and got back with Finn.]]
** Coach Beiste's husband is randomly revealed to be abusive. Granted, Dot-Marie Jones sold the storyline for everything she was worth and then some, but it came ''completely'' out of left field. TruthInTelevision, really -- people with abusive tendencies often take great pains to be nice and charming up until they can't hold it in anymore or feel the other person is trapped with them.
** In Season 4, Brody gets the Jesse treatment
in his glasses so she could watch him through a monitor in her bedroom. This so Steve, who'd been happily in a relationship with Myra Rachel. He's a normal guy who adores Rachel as she is, until it turns out he's actually an escort. It's even treated heroically when Finn beats him up for years, could be paired doing this to "his future wife."
* Louis in ''Literature/GossipGirl'' has been steadily becoming less sympathetic over the course of Season 5, as Chuck becomes a better person. This is lampshaded by Blair, as well as explained by the fact that Louis is well aware that in a competition against Chuck he'll lose no matter how nice and sweet he is, prompting him to become more underhanded in his desperation to keep Blair.
** Dan becomes this to Blair when their romance arc is coming to an ending and it's time for them to return to being the halves of their respective [[OfficialCouple official couples]]. He cheats on her
with Laura (whom he'd had a completely unrequited crush on, played Serena, blames the whole mess on Blair's feelings for comedy, Chuck (despite her having the decency not to sleep with the next guy before braking up with the former - unlike Dan) and [[TookALevelInJerkass takes a whole new level on jerkass]] after their break-up, going after all their friends by writing hateful pieces about them in press. He however still carries a torch for Blair, so decides to release a flattering chapter about Chuck in order to get back into her good while, graces... and only after he realizes he's lost all the chances with her, he releases a chapter about her - vicious, in turn. [[{{Hypocrite}} All this while claiming he's publishing it only for the sake of truth.]] It's quite funny where one remembers that the show started with Dan as the UnluckyEverydude moral compass of the cast and Blair as a monumental RichBitch.
** A very strange and brief derailment of Jenny occurs in Season 2, when she seems to be on the verge of getting together with Nate. Nate writes a letter to Jenny telling her his feelings
but Vanessa steals it before Jenny can read it. Jenny, having worked out the general idea of what Vanessa's up to if not the specifics, is persuaded to get her own back and humiliates Vanessa by now, had ''long'' been dropped.)tricking her into going to a ball in a see-through dress. Despite knowing full well what Vanessa did, Nate abruptly dismisses Jenny, telling her she's not the girl he thought she was, and...gets together with Vanessa instead. When Jenny immediately defends Vanessa to the mean girls, it's [[FelonyMisdemeanor hard to tell]] what Nate's problem is.



* ''Series/HowIMetYourMother'':
** Happens to Robin's boyfriend Nick, who was originally depicted as a hot guy who was both mature and had subtle snarker tendencies. Later in season eight he becomes "girly", overly sensitive, has {{Granola G|irl}}uy tastes and [[TheDitz is a complete idiot.]] There was attempted justification that he was an idiot all along but was too hot for Robin to notice that.
** In the same episode that it was "revealed" Nick was overly sensitive, it was "revealed" that Victoria was a total slob at home, something that has never been hinted in her previous appearances and given her occupation as a highly skilled pastry chef, it seemed rather unlikely. Thankfully, it was averted in the episode that she and Ted broke up where her being a slob wasn't what caused them to break up and Lily acknowledged that Victoria had valid reasons for breaking up with Ted because of Robin.
* ''Series/{{iCarly}}'' used this in an episode, to break up Jonah and Sam. They spent 60% of the episode being sickeningly sweet to each other. All of Sam's attention was being spent on him, and it was causing problems for her friendships with Carly and Freddie. Also impacting on their webshow. Instead of Sam coming to realize that she can't spend all her time with him, or have Jonah realize the same and back off slightly, he suddenly tries to cheat on Sam with Carly, making all the potential issues moot when they wedgie-bounce the sucker for trying to cheat. Which [[FridgeBrilliance actually made sense]] after "iKiss" with a bit of [[WildMassGuessing WMG]]. In "iKiss", which happened after she dated Jonah, Sam says that she's never kissed anyone, meaning that Sam must have never kissed Jonah. It's possible that Jonah got fed up with it and tried to kiss Carly instead.
* In the episode "The Grinning Man" of ''Series/JonathanCreek'', Jonathan manages to land himself a pretty, intelligent and caring girlfriend who (despite a slightly ditzy interest in magazine quizzes), is refreshingly normal compared to many of Jonathan's other love interests and is understandably worried when he goes investigating murders. At the end of the episode she runs off with Joey's boyfriend despite having never met him, paving the way for a possible Jonathan/Joey relationship.
* In ''Series/KamenRiderKiva'', there's a LoveTriangle between [[TheCasanova Otoya]], [[DefrostingIceQueen Yuri]], and [[TallDarkAndSnarky Jiro]]. Jiro proposes to Yuri, but then in order to have Otoya win her heart, Jiro is rapidly derailed into an obsessive lover who [[IfICantHaveYou tries to kill her]] because she doesn't want to marry him. All is moot anyway because Otoya then breaks Yuri's heart by dumping her for Maya, the mother of the show's protagonist.



* Repeatedly done on ''Series/TheDrewCareyShow'' as part of the central character's general run of bad luck. Nicki, his FormerlyFat fiancée, left after realizing how much weight she'd put on while they were together. Working class WrenchWench Sharon seemed perfect for Drew, but it was later revealed that Drew was in fact the other man when they meet her real boyfriend at a ballgame. The intended endpoint was a long-term thing with Kate, who was ironically derailed herself when Christa Miller ditched the show for ''Series/{{Scrubs}}''.
** When Drew started taking night classes, he met an older woman, and they started dating. There's a lot of fun at their expense over the age difference, but they seem like a happy couple. But then in her last appearance, she begins mothering Drew (when previously she had treated him like an adult). He didn't mind at first, until he [[{{Squick}} saw his mom's face during sex]], at which point they both agreed to end it.
* ''Series/DawsonsCreek'' has a tendency to do this to Pacey's girlfriends whenever they want him to get close to Joey. Andie, who's set up in Season 2 as his {{Adorkable}} soul mate, the first person who believes in him and helps him turns his life around, abruptly cheats on him in between seasons, then hammers the point home by cheating at an exam and lying about nearly being raped. Audrey, who, in Season 5, is portrayed as the first girl to be Pacey's equal, suddenly turns from a lovable party girl into a screwed-up alcoholic who ends up in rehab the following season.
* Louis in ''Literature/GossipGirl'' has been steadily becoming less sympathetic over the course of Season 5, as Chuck becomes a better person. This is lampshaded by Blair, as well as explained by the fact that Louis is well aware that in a competition against Chuck he'll lose no matter how nice and sweet he is, prompting him to become more underhanded in his desperation to keep Blair.
** Dan becomes this to Blair when their romance arc is coming to an ending and it's time for them to return to being the halves of their respective [[OfficialCouple official couples]]. He cheats on her with Serena, blames the whole mess on Blair's feelings for Chuck (despite her having the decency not to sleep with the next guy before braking up with the former - unlike Dan) and [[TookALevelInJerkass takes a whole new level on jerkass]] after their break-up, going after all their friends by writing hateful pieces about them in press. He however still carries a torch for Blair, so decides to release a flattering chapter about Chuck in order to get back into her good graces... and only after he realizes he's lost all the chances with her, he releases a chapter about her - vicious, in turn. [[{{Hypocrite}} All this while claiming he's publishing it only for the sake of truth.]] It's quite funny where one remembers that the show started with Dan as the UnluckyEverydude moral compass of the cast and Blair as a monumental RichBitch.
** A very strange and brief derailment of Jenny occurs in Season 2, when she seems to be on the verge of getting together with Nate. Nate writes a letter to Jenny telling her his feelings but Vanessa steals it before Jenny can read it. Jenny, having worked out the general idea of what Vanessa's up to if not the specifics, is persuaded to get her own back and humiliates Vanessa by tricking her into going to a ball in a see-through dress. Despite knowing full well what Vanessa did, Nate abruptly dismisses Jenny, telling her she's not the girl he thought she was, and...gets together with Vanessa instead. When Jenny immediately defends Vanessa to the mean girls, it's [[WhatDoYouMeanItsNotHeinous hard to tell]] what Nate's problem is.
* In the episode "The Grinning Man" of ''Series/JonathanCreek'', Jonathan manages to land himself a pretty, intelligent and caring girlfriend who (despite a slightly ditzy interest in magazine quizzes), is refreshingly normal compared to many of Jonathan's other love interests and is understandably worried when he goes investigating murders. At the end of the episode she runs off with Joey's boyfriend despite having never met him, paving the way for a possible Jonathan/Joey relationship.
* ''Series/{{iCarly}}'' used this in an episode, to break up Jonah and Sam. They spent 60% of the episode being sickeningly sweet to each other. All of Sam's attention was being spent on him, and it was causing problems for her friendships with Carly and Freddie. Also impacting on their webshow. Instead of Sam coming to realize that she can't spend all her time with him, or have Jonah realize the same and back off slightly, he suddenly tries to cheat on Sam with Carly, making all the potential issues moot when they wedgie-bounce the sucker for trying to cheat. Which [[FridgeBrilliance actually made sense]] after "iKiss" with a bit of [[WildMassGuessing WMG]]. In "iKiss", which happened after she dated Jonah, Sam says that she's never kissed anyone, meaning that Sam must have never kissed Jonah. It's possible that Jonah got fed up with it and tried to kiss Carly instead.
* In ''Series/FreaksAndGeeks'', Sam is hopelessly smitten with cute [[AllGuysWantCheerleaders cheerleader]] Cindy Sanders. Toward the end of the show's first and only season, Cindy finally starts dating Sam, and they almost immediately learn that they have no common interests and don't have any fun together. The previously sweet-natured Cindy is also revealed to be (mildly) bitchy and manipulative, as well as a bit vapid and dull.

to:

* Repeatedly done on ''Series/TheDrewCareyShow'' as part ''Series/{{NCIS}}'''s Jake Malloy (husband of the central character's general run of bad luck. Nicki, his FormerlyFat fiancée, left after realizing how much weight she'd put on while they were together. Working class WrenchWench Sharon seemed perfect for Drew, but it was later revealed that Drew was in fact the other man when they meet her real boyfriend at Ellie Bishop) goes from being a ballgame. The intended endpoint was a long-term thing with Kate, who was ironically derailed herself when Christa Miller ditched the show for ''Series/{{Scrubs}}''.
** When Drew started taking night classes, he met an older woman, and they started dating. There's a lot of fun at their expense over the age difference, but they seem like a happy couple. But then in her last appearance, she begins mothering Drew (when previously she had treated him like an adult). He didn't mind at first, until he [[{{Squick}} saw his mom's face during sex]], at which point they both agreed
loving, adoring spouse to end it.
* ''Series/DawsonsCreek'' has
a tendency to do this to Pacey's girlfriends whenever they want him to get close to Joey. Andie, who's set up in Season 2 as his {{Adorkable}} soul mate, the first person who believes in him and helps him turns his life around, abruptly cheats on him in between seasons, then hammers the point home by cheating at an exam and lying about nearly being raped. Audrey, who, in Season 5, is portrayed as the first girl one. Adding insult to be Pacey's equal, suddenly turns from a lovable party girl into a screwed-up alcoholic who ends up in rehab the following season.
* Louis in ''Literature/GossipGirl'' has been steadily becoming less sympathetic over the course of Season 5, as Chuck becomes a better person. This is lampshaded by Blair, as well as explained by
injury, the fact that Louis is well aware her next boyfriend was killed off in two episodes indicates that in a competition against Chuck he'll lose no matter how nice and sweet he is, prompting him to become more underhanded in his desperation to keep Blair.
** Dan becomes
this to Blair when their romance arc is coming to an ending and it's time was done for them no other reason than to return to being make her have the halves of their respective [[OfficialCouple official couples]]. He cheats on her with Serena, blames the whole mess on Blair's feelings for Chuck (despite her having the decency not to sleep with the next guy before braking up with the former - unlike Dan) and [[TookALevelInJerkass takes a whole new level on jerkass]] after their break-up, going after all their friends by writing hateful pieces about them in press. He however still carries a torch for Blair, so decides to release a flattering chapter about Chuck in order to get back into her good graces... and only after he realizes he's lost all the chances with her, he releases a chapter about her - vicious, in turn. [[{{Hypocrite}} All this while claiming he's publishing it only for the sake of truth.]] It's quite funny where one remembers same tragic, screwed-up love life that nearly everyone else does.
* This was forced on Will Griggs on '' Series/{{Neighbours}}'', not because he was a RomanticFalseLead, but because the actor had left
the show started early and they chose to bring in a SuspiciouslySimilarSubstitute. At the time he was written out, Carmella was furious with Dan Will for lying to her and hiding his real identity as the UnluckyEverydude moral compass Sebastian Barnes one of the cast and Blair as a monumental RichBitch.
** A very strange and brief derailment of Jenny occurs
richest men in Season 2, when she seems to be on the verge of getting together with Nate. Nate writes a letter to Jenny telling her his feelings country, but Vanessa steals it before Jenny can read it. Jenny, having worked out the general idea of what Vanessa's up to if not the specifics, is persuaded he was still trying to get her own back and humiliates Vanessa by tricking her into going to a ball in a see-through dress. Despite knowing full well what Vanessa did, Nate abruptly dismisses Jenny, telling her she's not the girl he thought she was, and...gets together with Vanessa instead. When Jenny immediately defends Vanessa to the mean girls, it's [[WhatDoYouMeanItsNotHeinous hard to tell]] what Nate's problem is.
* In the episode "The Grinning Man" of ''Series/JonathanCreek'', Jonathan manages to land himself a pretty, intelligent and caring girlfriend who (despite a slightly ditzy interest in magazine quizzes), is refreshingly normal compared to many of Jonathan's other love interests and is understandably worried when he goes investigating murders. At the end of the episode she runs off with Joey's boyfriend despite having never met him, paving the way for a possible Jonathan/Joey relationship.
* ''Series/{{iCarly}}'' used this in an episode, to break up Jonah and Sam. They spent 60% of the episode being sickeningly sweet to each other. All of Sam's attention was being spent on him, and it was causing problems for her friendships with Carly and Freddie. Also impacting on their webshow. Instead of Sam coming to realize that she can't spend all her time with him, or have Jonah realize the same and back off slightly, he
forgive him. Then suddenly tries he was gone, and his adoptive brother Oliver arrived to cheat reveal that Sebastian's entire personality had been faked, and was based on Sam with Carly, making all the potential issues moot Oliver. This led to Carmella and Oliver getting together, and apparently rendered insignificant Will's substantial number of good deeds, such as standing up to Paul's attempts at blackmail (his 2% share of Lassiters was enough to give Paul a controlling interest, and Paul used that to get Will's friend Ned fired); standing by Carmella when they wedgie-bounce she was badly burned by her mentally unstable cousin, and thwarting an attempt by Janae's pervert of a boss to spike her orange juice. It got worse later in the sucker for trying to cheat. Which [[FridgeBrilliance actually made sense]] after "iKiss" with a bit of [[WildMassGuessing WMG]]. In "iKiss", which happened after she dated Jonah, Sam says that she's never kissed anyone, meaning that Sam must have never kissed Jonah. It's possible that Jonah got fed up with it year when Oliver's biological brother Declan was kidnapped, and tried to kiss Carly instead.
* In ''Series/FreaksAndGeeks'', Sam is hopelessly smitten with cute [[AllGuysWantCheerleaders cheerleader]] Cindy Sanders. Toward the end of the show's first and
Sebastian (offscreen) only season, Cindy finally starts dating Sam, and they almost immediately learn that they have no common interests and don't have any fun together. The previously sweet-natured Cindy is also revealed agreed to be (mildly) bitchy and manipulative, as well as a bit vapid and dull.pay the ransom if Oliver gave up his share in the Barnes hotel chain.



* Subverted in favor of the dramatic route on ''Series/{{Battlestar Galactica|2003}}'', where Kara and Anders' relationship stays intact despite Kara's affair with Lee (Kara and Lee having been the FanPreferredCouple in the previous season).
* A regular occurrence on ''Series/GilmoreGirls'':
** Dean's wife Lindsay became a shrill harpy who overworks her husband as Rory suddenly becomes interested in Dean again (although Lorelai called her out on this one). Ironically, Dean would get derailed himself for the actor's exit from the show.
** Jason threatens to sue Richard after he and Jason's father essentially destroy his livelihood, just in time for the Luke/Lorelai relationship to finally happen.
** Marty is at first a sweet classmate who takes an interest in Rory but she spurns his advances and he takes a long bus ride only to return as a huge Jerkass in the last season.

to:

* Subverted ''Series/OnceUponATime'': Done in favor an interesting (if somewhat convoluted) manner in regards to the Regina/Robin Hood/Maid Marian triangle. Season 3 ended with Regina and Robin Hood falling in love and starting to date each other, but then suddenly Maid Marian (Robin Hood's wife who was originally dead by the present story-line of the dramatic route on ''Series/{{Battlestar Galactica|2003}}'', where Kara show) is accidentally pulled out of time into present-day Storybrooke. Obviously, Robin goes back to her (since it's his long-lost wife and Anders' he made a commitment to her), making Regina furious at losing an actual love interest. One could infer that the writers wanted Regina and Robin to stay together (seeing as how quickly Robin and Regina hit back off when Marian becomes incapacitated in the beginning of Season 4), but with Marian present, they couldn't. In the end, [[spoiler: Marian [[ShockingSwerve quite suddenly]] turns out to be Regina's spiteful older sister Zelena (the real Maid Marian turned out to be dead after all)]], leaving [[spoiler: Regina and Robin]] free to continue their relationship stays intact despite Kara's affair with Lee (Kara and Lee having been the FanPreferredCouple without a hitch.
* One is
in the previous season).
* A regular occurrence on ''Series/GilmoreGirls'':
** Dean's wife Lindsay became
US version of ''Series/QueerAsFolk'', where Justin leaves Brian for a shrill harpy much more romantic guy, who overworks her husband as Rory suddenly becomes interested has an affair.
* Played straight
in Dean again (although Lorelai called her out on this one). Ironically, Dean would get derailed himself for the actor's exit from the show.
** Jason threatens to sue Richard after he and Jason's father essentially destroy his livelihood, just in time for the Luke/Lorelai
BBC's ''Series/RobinHood''. Robin starts a relationship with Isabella, a seemingly intelligent, rational, and compassionate woman. However, halfway through the series, Isabella throws an inexplicable [[CharacterDerailment temper tantrum]], [[LoveMakesYouCrazy goes insane]] and [[LoveMakesYouEvil tries to kill him]] after Robin tells her that his mission must come before her. This is apparently done so that the writers can kick-start Robin's love story with Kate. Oh, and if you're wondering where Maid Marian is during all of this, [[spoiler:she was murdered by Isabella's brother last season]]. Even more irritating was the fact that Robin cites his commitment to England and his inability to have a normal life as the reasons for breaking up with Isabella. Yet he hooks up with Kate two episodes later, [[AesopAmnesia having completely forgotten his own reasons why it's not a good idea to be in a relationship]].
* Out of the blue, Tess on ''Series/{{Roswell}}'' was revealed to have been repeatedly brainwashing their friend and conspiring with their enemies so they could break up her and Max.
* ''Series/SexAndTheCity's'' Alexandr is one of the best examples of this trope, going from an amazing, sweet, and sensitive guy to a jerk who ignores Carrie and proves to be completely self-absorbed before leaving for Paris.
* ''Series/SilentWitness'': Nikki and Harry's underlying mutual attraction was extremely popular with fans (and later, after Harry left, Nikki turned out to have exactly the same attraction with [[ReplacementLoveInterest Jack]]) so, if either of them gets a love interest who isn't killed off, this is what tends to happen instead. A typical example is in the story "Safe" where Nikki begins dating a paramedic that she met at a crime scene. He initially seems to be the perfect guy, but she soon works out that he's cheating on a wife or girlfriend with her, and he turns out to have a short temper too. The last straw comes when he goes on a racist tirade against the mother of two murder victims, causing Nikki
to finally happen.
** Marty is at
wise up and dump him (much to the delight of Harry).
* ''Series/{{Smallville}}'' made a habit of this with Lana's love interests. Jason Teague was thrown into the TitleSequence in his very
first a sweet classmate who takes an interest in Rory but she spurns his advances and he takes a long bus ride appearance, only to return get less and less screentime until, at the end of the season, [[spoiler:he was revealed as a huge Jerkass in member of some ridiculous secret society and then [[DroppedABridgeOnHim unceremoniously killed]]... by meteors]]. This was only one season after Lana's previous boyfriend, Adam, became increasingly unstable and villainous...[[spoiler: before dying of delayed liver failure while trying to shoot her.]] This seemed to happen with Whitney, her original boyfriend who was PutOnABus at the last season.end of season one, when TheBusCameBack in season two and he immediately started being sinister and throwing Clark through doors. However, it turned out that actually he [[spoiler:was dead; the villainous version was her [[VoluntaryShapeshifting shape-shifting]] StalkerWithACrush]].



* ''Series/{{Glee}}'':
** After [[OfficialCouple Rachel and Finn]]'s sort-of relationship hits a rut, she meets Jesse St. James, the lead singer of rival Glee club Vocal Adrenaline. Naturally he's her equal, understands her perfectly, etcetera. When he is very obviously TheMole, he admits that [[BecomingTheMask he's starting to have feelings for her]]. Right after ''that'' happens, of course, he becomes utterly cruel with the [[spoiler: egg-assault in the parking lot and him acting like she somehow did something to deserve it]], especially since the last time we saw them they were perfectly happy together and she had done nothing to upset him. It's clear he's only doing it because he wants to go back to Vocal Adrenaline so that he can win a fourth national show-choir championship, and needs to prove his loyalty to the team above all else. [[spoiler: But it may be subverted. TheBusCameBack with him on board, and he ends up apologizing to Rachel and is obviously still very much in love with her. However, she didn't care and got back with Finn.]]
** Coach Beiste's husband is randomly revealed to be abusive. Granted, Dot-Marie Jones sold the storyline for everything she was worth and then some, but it came ''completely'' out of left field. TruthInTelevision, really -- people with abusive tendencies often take great pains to be nice and charming up until they can't hold it in anymore or feel the other person is trapped with them.
** In Season 4, Brody gets the Jesse treatment in his relationship with Rachel. He's a normal guy who adores Rachel as she is, until it turns out he's actually an escort. It's even treated heroically when Finn beats him up for doing this to "his future wife."
* This was forced on Will Griggs on '' Series/{{Neighbours}}'', not because he was a RomanticFalseLead, but because the actor had left the show early and they chose to bring in a SuspiciouslySimilarSubstitute. At the time he was written out, Carmella was furious with Will for lying to her and hiding his real identity as Sebastian Barnes one of the richest men in the country, but he was still trying to get her to forgive him. Then suddenly he was gone, and his adoptive brother Oliver arrived to reveal that Sebastian's entire personality had been faked, and was based on Oliver. This led to Carmella and Oliver getting together, and apparently rendered insignificant Will's substantial number of good deeds, such as standing up to Paul's attempts at blackmail (his 2% share of Lassiters was enough to give Paul a controlling interest, and Paul used that to get Will's friend Ned fired); standing by Carmella when she was badly burned by her mentally unstable cousin, and thwarting an attempt by Janae's pervert of a boss to spike her orange juice. It got worse later in the year when Oliver's biological brother Declan was kidnapped, and Sebastian (offscreen) only agreed to pay the ransom if Oliver gave up his share in the Barnes hotel chain.
* Happened to Eddie [=LeBec=], Carla's husband, on ''Series/{{Cheers}}''. They foreshadowed it for a few episodes, but transformed him from the nicest guy you'd ever want to meet, to a cheater who married the woman he had his affair with and never told Carla (it became public at his funeral). This was deliberate payback on part of the producers for Jay Thomas having insulted Rhea Perlman's attractiveness on national radio.
* The writers of ''Series/{{Frasier}}'' saw this trope looming at them from a mile away and nipped it in the bud by never bothering to make Niles's RomanticFalseLead Mel Karnofski into a sympathetic character in the first place. From the very start she was both characterized and described as a slightly-kinder doppelganger of Niles's first wife [[TheGhost Maris]], a controlling, domineering, hysterical ManipulativeBastard and JerkAss extraordinaire (whom [[ShipperOnDeck all the characters despised]]), explaining Niles's attraction to her as a bad pattern (similar to how some women who leave an abusive boyfriend fall for men exactly like him over and over), instead of wasting time trying to make her into a person for whom Niles could fall for healthy reasons, but [[DieForOurShip the fans would inevitably vilify anyway.]]



* ''Series/{{Smallville}}'' made a habit of this with Lana's love interests. Jason Teague was thrown into the TitleSequence in his very first appearance, only to get less and less screentime until, at the end of the season, [[spoiler:he was revealed as a member of some ridiculous secret society and then [[DroppedABridgeOnHim unceremoniously killed]]... by meteors]]. This was only one season after Lana's previous boyfriend, Adam, became increasingly unstable and villainous...[[spoiler: before dying of delayed liver failure while trying to shoot her.]] This seemed to happen with Whitney, her original boyfriend who was PutOnABus at the end of season one, when TheBusCameBack in season two and he immediately started being sinister and throwing Clark through doors, until it turned out that actually he [[spoiler:was dead; the villainous version was her [[VoluntaryShapeshifting shape-shifting]] StalkerWithACrush]].
* ''Series/{{Charmed|1998}}'' derailed both lovers in the relationship at different times with Phoebe and Cole. The relationship went through a LOT of drama ([[spoiler:Cole became possessed by the Source of all evil, made Phoebe his queen and got her pregnant with a demonic baby which forced her to kill him]]). She ended season 4 still loving him but just afraid to use magic to resurrect him. Then the first episode of season 5 she suddenly blames him for everything that's gone wrong in her life and threatens to kill him over a bad dream she had. The writers then realised Cole was looking too sympathetic and abruptly made him go mad and evil and thus [[spoiler: had to be killed off permanently]].
* ''Series/HowIMetYourMother'':
** Happens to Robin's boyfriend Nick, who was originally depicted as a hot guy who was both mature and had subtle snarker tendencies. Later in season eight he becomes "girly", overly sensitive, has {{Granola G|irl}}uy tastes and [[TheDitz is a complete idiot.]] There was attempted justification that he was an idiot all along but was too hot for Robin to notice that.
** In the same episode that it was "revealed" Nick was overly sensitive, it was "revealed" that Victoria was a total slob at home, something that has never been hinted in her previous appearances and given her occupation as a highly skilled pastry chef, it seemed rather unlikely. Thankfully, it was averted in the episode that she and Ted broke up where her being a slob wasn't what caused them to break up and Lily acknowledged that Victoria had valid reasons for breaking up with Ted because of Robin.
* In ''Series/KamenRiderKiva'', there's a LoveTriangle between [[TheCasanova Otoya]], [[DefrostingIceQueen Yuri]], and [[TallDarkAndSnarky Jiro]]. Jiro proposes to Yuri, but then in order to have Otoya win her heart, Jiro is rapidly derailed into an obsessive lover who [[IfICantHaveYou tries to kill her]] because she doesn't want to marry him. All is moot anyway because Otoya then breaks Yuri's heart by dumping her for Maya, the mother of the show's protagonist.
* ''Series/DocMartin'': Louisa reunites with her ex-boyfriend, who accepts a job in London after asking her to marry him. So she dumps him because he's disingenuous about living a life together in their beloved village, and not so much because he's [[TheFundamentalist an insufferable Jesus freak]].
* ''Series/SilentWitness'': Nikki and Harry's underlying mutual attraction was extremely popular with fans (and later, after Harry left, Nikki turned out to have exactly the same attraction with [[ReplacementLoveInterest Jack]]) so, if either of them gets a love interest who isn't killed off, this is what tends to happen instead. A typical example is in the story "Safe" where Nikki begins dating a paramedic that she met at a crime scene. He initially seems to be the perfect guy, but she soon works out that he's cheating on a wife or girlfriend with her, and he turns out to have a short temper too. The last straw comes when he goes on a racist tirade against the mother of two murder victims, causing Nikki to finally wise up and dump him (much to the delight of Harry).

to:

* ''Series/{{Smallville}}'' made a habit of this with Lana's love interests. Jason Teague was thrown into the TitleSequence Charlie in his very first appearance, only to get less and less screentime until, at the end of the season, [[spoiler:he was revealed as a member of some ridiculous secret society and then [[DroppedABridgeOnHim unceremoniously killed]]... by meteors]]. This was only one season after Lana's previous boyfriend, Adam, became increasingly unstable and villainous...[[spoiler: before dying of delayed liver failure while trying to shoot her.]] This seemed to happen with Whitney, her original boyfriend who was PutOnABus at the end of season one, when TheBusCameBack in season two and he immediately started being sinister and throwing Clark through doors, until it turned out that actually he [[spoiler:was dead; the villainous version was her [[VoluntaryShapeshifting shape-shifting]] StalkerWithACrush]].
* ''Series/{{Charmed|1998}}'' derailed both lovers in the relationship at different times with Phoebe and Cole. The relationship
''Series/UglyBetty'' went through a LOT of drama ([[spoiler:Cole became possessed by the Source of all evil, made Phoebe his queen and got her pregnant with a demonic baby which forced her from sweet, likeable girl to kill him]]). She ended season 4 still loving him but just afraid to use magic to resurrect him. jealous, two-timing harpy in no time. Then again, the first episode of season 5 she suddenly blames him for everything that's gone wrong in her life and threatens to kill him over show ''is'' partly a bad dream she had. The writers then realised Cole was looking too sympathetic and abruptly made him go mad and evil and thus [[spoiler: had to be killed off permanently]].
* ''Series/HowIMetYourMother'':
** Happens to Robin's boyfriend Nick, who was originally depicted as a hot guy who was both mature and had subtle snarker tendencies. Later in season eight he becomes "girly", overly sensitive, has {{Granola G|irl}}uy tastes and [[TheDitz is a complete idiot.]] There was attempted justification that he was an idiot all along but was too hot for Robin to notice that.
** In the same episode that it was "revealed" Nick was overly sensitive, it was "revealed" that Victoria was a total slob at home, something that has never been hinted in her previous appearances and given her occupation as a highly skilled pastry chef, it seemed rather unlikely. Thankfully, it was averted in the episode that she and Ted broke up where her being a slob wasn't what caused them to break up and Lily acknowledged that Victoria had valid reasons for breaking up with Ted because of Robin.
* In ''Series/KamenRiderKiva'', there's a LoveTriangle between [[TheCasanova Otoya]], [[DefrostingIceQueen Yuri]], and [[TallDarkAndSnarky Jiro]]. Jiro proposes to Yuri, but then in order to have Otoya win her heart, Jiro is rapidly derailed into an obsessive lover who [[IfICantHaveYou tries to kill her]] because she doesn't want to marry him. All is moot anyway because Otoya then breaks Yuri's heart by dumping her for Maya, the mother of the show's protagonist.
* ''Series/DocMartin'': Louisa reunites with her ex-boyfriend, who accepts a job in London after asking her to marry him. So she dumps him because he's disingenuous about living a life together in their beloved village, and not so much because he's [[TheFundamentalist an insufferable Jesus freak]].
* ''Series/SilentWitness'': Nikki and Harry's underlying mutual attraction was extremely popular with fans (and later, after Harry left, Nikki turned out to have exactly the same attraction with [[ReplacementLoveInterest Jack]]) so, if either of them gets a love interest who isn't killed off, this is what tends to happen instead. A typical example is in the story "Safe" where Nikki begins dating a paramedic that she met at a crime scene. He initially seems to be the perfect guy, but she soon works out that he's cheating on a wife or girlfriend with her, and he turns out to have a short temper too. The last straw comes when he goes on a racist tirade against the mother of two murder victims, causing Nikki to finally wise up and dump him (much to the delight of Harry).
soap parody...



* ''Series/DowntonAbbey'': In series five, Anthony Gillingham suddenly becomes clingy, demanding and possessive of Mary (even giving the implied threat of ruining her reputation if she tries to break up with him) in order to have her warm up to Charles Blake.
* ''Series/OnceUponATime'': Done in an interesting (if somewhat convoluted) manner in regards to the Regina/Robin Hood/Maid Marian triangle. Season 3 ended with Regina and Robin Hood falling in love and starting to date each other, but then suddenly Maid Marian (Robin Hood's wife who was originally dead by the present story-line of the show) is accidentally pulled out of time into present-day Storybrooke. Obviously, Robin goes back to her (since it's his long-lost wife and he made a commitment to her), making Regina furious at losing an actual love interest. One could infer that the writers wanted Regina and Robin to stay together (seeing as how quickly Robin and Regina hit back off when Marian becomes incapacitated in the beginning of Season 4), but with Marian present, they couldn't. In the end, [[spoiler: Marian [[ShockingSwerve quite suddenly]] turns out to be Regina's spiteful older sister Zelena (the real Maid Marian turned out to be dead after all)]], leaving [[spoiler: Regina and Robin]] free to continue their relationship without a hitch.
* ''Series/DropDeadDiva'': Owen French, a sweet judge who dropped his own vacation plans to spend a romantic time with Jane, suddenly becomes a spiteful and petty JerkAss after [[spoiler: Grayson kisses Jane on her wedding day]]. While Jane should have [[PoorCommunicationKills explained what]] [[IdiotPlot happened from the get-go]], when she finally does explain Owen refuses to forgive her for something that was not her fault and starts [[ReplacementGoldfish hitting on her best friend.]]
* ''Series/{{NCIS}}'''s Jake Malloy (husband of Ellie Bishop) goes from being a loving, adoring spouse to a cheating one. Adding insult to injury, the fact that her next boyfriend was killed off in two episodes indicates that this was done for no other reason than to make her have the same tragic, screwed-up love life that nearly everyone else does.
* In ''Series/BlackLightning2018'', Anissa's girlfriend starts the show as loving and compassionate, and their relationship is loving and full of passion, to the point where Anissa is comfortable telling her about her growing powers. Then, in episode 3, the girl inexplicably becomes jealous, paranoid, and racist, and Anissa suddenly claims that the relationship has been going downhill for awhile. No sign of that has been shown in the two previous episodes. All this seems to be done to allow Anissa to hook up with Grace, who might be more supportive of her becoming a superhero.
* Stuart Rosebrock on ''Series/{{Coach}}''; when he's introduced he has nothing but devotion to Kelly, [[DatingWhatDaddyHates despite Hayden not liking him]] and, though they have a few arguments during their dating & eventual marriage, are shown to be a good match. Then comes the season 4 premiere "The Kick Off & the Kiss Off," where he got a job on a popular kids show over the summer in Los Angeles, and suddenly, he comes back, [[TookALevelInJerkass loving LA and thinking he's too good for Minnesota]], having apparently met someone else on the show, and leaves Kelly behind just like that, despite him ''having shown nothing but love and affection for her before then.'' [[note]] Granted, this was because Kris Kamm was leaving the show, but there could've been a better way to have him leave. [[/note]]



* Julie admitting in the ''WesternAnimation/{{Ben 10 Omniverse}}'' episode "Rules of Engagement" that she never liked Mr. Smoothies, only faking it in front of her ex-boyfriend Ben despite the fact that she is seen sharing smoothies with Gwen back in ''[[WesternAnimation/Ben10AlienForce Alien Force]]'' without any objections.
* ''WesternAnimation/FamilyGuy'':
** Quagmire gets engaged to a calm and attractive maid. Throughout the episode, the relationship was loving and Quagmire even lost interest in other women. Peter and the gang's attempts to get Quagmire back to his old womanizing ways fail, up until the wedding reception, where Peter's actions with Lois remind Quagmire of what he really wants. Then his cheerful patient bride to be is revealed to be a self-destructive {{Yandere}} out of nowhere, therefore absolving Quagmire of getting out of the relationship. StatusQuoIsGod in this show, so the relationship was unlikely to survive the episode.
** Similarly, in another episode, Brian ends up dating an older woman - attractive, smart, a decent head on her shoulders despite her age (which isn't even really that old), and despite the [[JerkAss entire family]] laughing at her for it, Brian ends up proposing to her and it seems everything is going to be okay...until out of nowhere (this is where the trope comes in), she starts calling him for lunch far too early to be reasonable, complaining about her hip, and giving 'old-fashioned' names to things. This is, again, out of nowhere and doesn't match up with anything she'd done before, but as stated before, StatusQuoIsGod and the relationship would not have survived the episode no matter how you cut it.
* ''WesternAnimation/{{Futurama}}:'' Season 6's "Proposition Infinity," which uses [[{{Robosexual}} human/robot relationships]] as a metaphor for gay marriage, does this to [[ExtremeDoormat Kif]]. He's suddenly {{Flanderiz|ation}}ed into such a wuss that he's afraid to watch cooking shows because they contain chopping, and [[AsianAirhead Amy]] suddenly becomes utterly disgusted with him, when it was Kif's sweet nature that attracted her to him in the first place. All so Amy can wind up in a relationship with [[JerkWithAHeartOfGold Bender]] that doesn't last to the end of the episode, the last scene of which has her reconcile with Kif. [[SarcasmMode Apparently this was easier than just creating a one-off human love interest for Bender]], or using [[InterspeciesRomance human/alien relationships]] for the metaphor instead or something. It doesn't help that the Bender/Amy romance is (accidentally?) portrayed as being a pretty dysfunctional case of AllGirlsWantBadBoys.



* In Season 6 of ''WesternAnimation/TotallySpies'', [[spoiler: Blaine cheats on Clover with Mandy]] in a very out-of-character moment for him that seemed shoehorned in for the express purpose of getting [[spoiler:Clover]] single again.



* ''WesternAnimation/FamilyGuy'':
** Quagmire gets engaged to a calm and attractive maid. Throughout the episode, the relationship was loving and Quagmire even lost interest in other women. Peter and the gang's attempts to get Quagmire back to his old womanizing ways fail, up until the wedding reception, where Peter's actions with Lois remind Quagmire of what he really wants. Then his cheerful patient bride to be is revealed to be a self-destructive {{Yandere}} out of nowhere, therefore absolving Quagmire of getting out of the relationship. StatusQuoIsGod in this show, so the relationship was unlikely to survive the episode.
** Similarly, in another episode, Brian ends up dating an older woman - attractive, smart, a decent head on her shoulders despite her age (which isn't even really that old), and despite the [[JerkAss entire family]] laughing at her for it, Brian ends up proposing to her and it seems everything is going to be okay...until out of nowhere (this is where the trope comes in), she starts calling him for lunch far too early to be reasonable, complaining about her hip, and giving 'old-fashioned' names to things. This is, again, out of nowhere and doesn't match up with anything she'd done before, but as stated before, StatusQuoIsGod and the relationship would not have survived the episode no matter how you cut it.
* ''WesternAnimation/{{Futurama}}:'' Season 6's "Proposition Infinity," which uses [[{{Robosexual}} human/robot relationships]] as a metaphor for gay marriage, does this to [[ExtremeDoormat Kif]]. He's suddenly {{Flanderiz|ation}}ed into such a wuss that he's afraid to watch cooking shows because they contain chopping, and [[AsianAirhead Amy]] suddenly becomes utterly disgusted with him, when it was Kif's sweet nature that attracted her to him in the first place. All so Amy can wind up in a relationship with [[JerkWithAHeartOfGold Bender]] that doesn't last to the end of the episode, the last scene of which has her reconcile with Kif. [[SarcasmMode Apparently this was easier than just creating a one-off human love interest for Bender]], or using [[InterspeciesRomance human/alien relationships]] for the metaphor instead or something. It doesn't help that the Bender/Amy romance is (accidentally?) portrayed as being a pretty dysfunctional case of AllGirlsWantBadBoys.
* In Season 6 of ''WesternAnimation/TotallySpies'', [[spoiler: Blaine cheats on Clover with Mandy]] in a very out-of-character moment for him that seemed shoehorned in for the express purpose of getting [[spoiler:Clover]] single again.
* Julie admitting in the ''WesternAnimation/{{Ben 10 Omniverse}}'' episode "Rules of Engagement" that she never liked Mr. Smoothies, only faking it in front of her ex-boyfriend Ben despite the fact that she is seen sharing smoothies with Gwen back in ''[[WesternAnimation/Ben10AlienForce Alien Force]]'' without any objections.


* ''Series/{{Charmed}}'' derailed both lovers in the relationship at different times with Phoebe and Cole. The relationship went through a LOT of drama ([[spoiler:Cole became possessed by the Source of all evil, made Phoebe his queen and got her pregnant with a demonic baby which forced her to kill him]]). She ended season 4 still loving him but just afraid to use magic to resurrect him. Then the first episode of season 5 she suddenly blames him for everything that's gone wrong in her life and threatens to kill him over a bad dream she had. The writers then realised Cole was looking too sympathetic and abruptly made him go mad and evil and thus [[spoiler: had to be killed off permanently]].

to:

* ''Series/{{Charmed}}'' ''Series/{{Charmed|1998}}'' derailed both lovers in the relationship at different times with Phoebe and Cole. The relationship went through a LOT of drama ([[spoiler:Cole became possessed by the Source of all evil, made Phoebe his queen and got her pregnant with a demonic baby which forced her to kill him]]). She ended season 4 still loving him but just afraid to use magic to resurrect him. Then the first episode of season 5 she suddenly blames him for everything that's gone wrong in her life and threatens to kill him over a bad dream she had. The writers then realised Cole was looking too sympathetic and abruptly made him go mad and evil and thus [[spoiler: had to be killed off permanently]].


If done too abruptly and without foreshadowing, viewers will feel that the writer has used an AssPull or DeusExMachina in order to get the OfficialCouple together. It doesn't look good for Alice, either: if Charlie's new InformedFlaw is small in comparison to Bob's, she looks petty, flighty, or indecisive [[MinorFlawMajorBreakup to dump him for it]]; if his flaw is enormous, she seems like a HorribleJudgeOfCharacter for not noticing it sooner.

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If done too abruptly and without foreshadowing, viewers will feel that the writer has used an AssPull or DeusExMachina in order to get the OfficialCouple together. It doesn't look good for Alice, either: if Charlie's new InformedFlaw is small in comparison to Bob's, she looks petty, flighty, or indecisive it would be cheap for her [[MinorFlawMajorBreakup to dump him for it]]; if his flaw is enormous, she seems like a HorribleJudgeOfCharacter for not noticing it sooner.


** Kitty and Lance broke up because she just found out he was a jerk and a villain, but Lance himself had previously been both a jerk and villain only attempting a HeelFaceTurn [[DatingCatwoman to be with Kitty]]. In some ways their breakup made a lot of sense considering the fact that, before they broke up, he returned to 'villainy' alongside the Brotherhood and Mystique, and still had some contempt for the X-Men. And, just so he wasn't forgotten, he got an episode of CharacterDevelopment later and his own personal SugarWiki/MomentOfAwesome which doubled as a PetTheDog moment. [[Administrivia/RuleOfCautiousEditingJudgment But,]] [[RonTheDeathEater some would rather think he was always an ass or worse]] [[BrokenBase while others]] [[DracoInLeatherPants would rather think he was always a sweet guy with a troubled past and bad friends]].

to:

** Kitty and Lance broke up because she just found out he was a jerk and a villain, but Lance himself had previously been both a jerk and villain only attempting a HeelFaceTurn [[DatingCatwoman to be with Kitty]]. In some ways their breakup made a lot of sense considering the fact that, before they broke up, he returned to 'villainy' alongside the Brotherhood and Mystique, and still had some contempt for the X-Men. And, just so he wasn't forgotten, he got an episode of CharacterDevelopment later and his own personal SugarWiki/MomentOfAwesome which doubled as a PetTheDog moment. [[Administrivia/RuleOfCautiousEditingJudgment But,]] [[RonTheDeathEater But, some would rather think he was always an ass or worse]] [[BrokenBase worse while others]] [[DracoInLeatherPants others would rather think he was always a sweet guy with a troubled past and bad friends]].



** Similarly, in another episode, Brian ends up dating an older woman - attractive, smart, a decent head on her shoulders despite her age (which isn't even really that old), and despite the [[JerkAss entire family]] laughing at her for it, [[SugarWiki/HeartwarmingMoments Brian ends up proposing to her]] and it seems everything is going to be okay...until out of nowhere (this is where the trope comes in), she starts calling him for lunch far too early to be reasonable, complaining about her hip, and giving 'old-fashioned' names to things. This is, again, out of nowhere and doesn't match up with anything she'd done before, but as stated before, StatusQuoIsGod and the relationship would not have survived the episode no matter how you cut it.

to:

** Similarly, in another episode, Brian ends up dating an older woman - attractive, smart, a decent head on her shoulders despite her age (which isn't even really that old), and despite the [[JerkAss entire family]] laughing at her for it, [[SugarWiki/HeartwarmingMoments Brian ends up proposing to her]] her and it seems everything is going to be okay...until out of nowhere (this is where the trope comes in), she starts calling him for lunch far too early to be reasonable, complaining about her hip, and giving 'old-fashioned' names to things. This is, again, out of nowhere and doesn't match up with anything she'd done before, but as stated before, StatusQuoIsGod and the relationship would not have survived the episode no matter how you cut it.


** Kitty and Lance broke up because she just found out he was a jerk and a villain, but Lance himself had previously been both a jerk and villain only attempting a HeelFaceTurn [[DatingCatwoman to be with Kitty]]. In some ways their breakup made a lot of sense considering the fact that, before they broke up, he returned to 'villainy' alongside the Brotherhood and Mystique, and still had some contempt for the X-Men. And, just so he wasn't forgotten, he got an episode of CharacterDevelopment later and his own personal SugarWiki/MomentOfAwesome which doubled as a PetTheDog moment. [[RuleOfCautiousEditingJudgement But,]] [[RonTheDeathEater some would rather think he was always an ass or worse]] [[BrokenBase while others]] [[DracoInLeatherPants would rather think he was always a sweet guy with a troubled past and bad friends]].

to:

** Kitty and Lance broke up because she just found out he was a jerk and a villain, but Lance himself had previously been both a jerk and villain only attempting a HeelFaceTurn [[DatingCatwoman to be with Kitty]]. In some ways their breakup made a lot of sense considering the fact that, before they broke up, he returned to 'villainy' alongside the Brotherhood and Mystique, and still had some contempt for the X-Men. And, just so he wasn't forgotten, he got an episode of CharacterDevelopment later and his own personal SugarWiki/MomentOfAwesome which doubled as a PetTheDog moment. [[RuleOfCautiousEditingJudgement [[Administrivia/RuleOfCautiousEditingJudgment But,]] [[RonTheDeathEater some would rather think he was always an ass or worse]] [[BrokenBase while others]] [[DracoInLeatherPants would rather think he was always a sweet guy with a troubled past and bad friends]].


** Then there's Emily, another bump in the Ross/Rachel road. They have a season long courtship. Everyone, except the jealous Rachel, really likes her and they plan their wedding in England. After being humiliated when Ross says Rachel's name during their wedding vows and making the somewhat reasonable demand to not see Rachel anymore if he wants the marriage to work, suddenly everyone acts as if they never like her and she was being unfair.

to:

** Then there's Emily, another bump in the Ross/Rachel road. They have a season long courtship. Everyone, except the jealous Rachel, really likes her and they plan their wedding in England. After being humiliated when Ross says Rachel's name during their wedding vows and making the somewhat reasonable demand to not see Rachel anymore if he wants the marriage to work, suddenly everyone acts as if they never like her and she was being unfair.


* Played straight in ''Series/{{Glee}}'': After [[OfficialCouple Rachel and Finn]]'s sort-of relationship hits a rut, she meets Jesse St. James, the lead singer of rival Glee club Vocal Adrenaline. Naturally he's her equal, understands her perfectly, etcetera. When he is very obviously TheMole, he admits that [[BecomingTheMask he's starting to have feelings for her]]. Right after ''that'' happens, of course, he becomes utterly cruel with the [[spoiler: egg-assault in the parking lot and him acting like she somehow did something to deserve it]], especially since the last time we saw them they were perfectly happy together and she had done nothing to upset him. It's clear he's only doing it because he wants to go back to Vocal Adrenaline so that he can win a fourth national show-choir championship, and needs to prove his loyalty to the team above all else. [[spoiler: But it may be subverted. TheBusCameBack with him on board, and he ends up apologizing to Rachel and is obviously still very much in love with her. However, she didn't care and got back with Finn.]]

to:

* Played straight in ''Series/{{Glee}}'': ''Series/{{Glee}}'':
**
After [[OfficialCouple Rachel and Finn]]'s sort-of relationship hits a rut, she meets Jesse St. James, the lead singer of rival Glee club Vocal Adrenaline. Naturally he's her equal, understands her perfectly, etcetera. When he is very obviously TheMole, he admits that [[BecomingTheMask he's starting to have feelings for her]]. Right after ''that'' happens, of course, he becomes utterly cruel with the [[spoiler: egg-assault in the parking lot and him acting like she somehow did something to deserve it]], especially since the last time we saw them they were perfectly happy together and she had done nothing to upset him. It's clear he's only doing it because he wants to go back to Vocal Adrenaline so that he can win a fourth national show-choir championship, and needs to prove his loyalty to the team above all else. [[spoiler: But it may be subverted. TheBusCameBack with him on board, and he ends up apologizing to Rachel and is obviously still very much in love with her. However, she didn't care and got back with Finn.]]



* Happens to Nick in ''Series/HowIMetYourMother'', who was originally depicted as a hot guy who was both mature and had subtle snarker tendencies. But later in season eight, he becomes "girly", overly sensitive, has {{Granola G|irl}}uy tastes and [[TheDitz is a complete idiot.]] There was attempted justification that he was an idiot all along but was too hot for Robin to notice that.

to:

* ''Series/HowIMetYourMother'':
**
Happens to Nick in ''Series/HowIMetYourMother'', Robin's boyfriend Nick, who was originally depicted as a hot guy who was both mature and had subtle snarker tendencies. But later Later in season eight, eight he becomes "girly", overly sensitive, has {{Granola G|irl}}uy tastes and [[TheDitz is a complete idiot.]] There was attempted justification that he was an idiot all along but was too hot for Robin to notice that.



* Towards the final years of ''ComicStrip/ForBetterOrForWorse'', any non-Anthony entity that Elizabeth showed any romantic interest in, no matter how sweet and kind, were eventually shown to be cheating on her, [[StalkingIsLove stalking her]], or otherwise completely disrespecting her. The record being her date to a wedding reception getting drunk and falling asleep the same night. Note that Anthony did in fact stalk Elizabeth and emotionally cheated on his wife, but these were brushed aside because he was ''[[CreatorsPet Anthony]]''.
** The dumbest break-up was with the helicopter pilot. First Liz mistook his sister for a secret girlfriend, then he said he couldn't be tied down.

to:

* ''ComicStrip/ForBetterOrForWorse'':
**
Towards the final years of ''ComicStrip/ForBetterOrForWorse'', years, any non-Anthony entity that Elizabeth showed any romantic interest in, no matter how sweet and kind, were eventually shown to be cheating on her, [[StalkingIsLove stalking her]], or otherwise completely disrespecting her. The record being her date to a wedding reception getting drunk and falling asleep the same night. Note that Anthony did in fact stalk Elizabeth and emotionally cheated on his wife, but these were brushed aside because he was ''[[CreatorsPet Anthony]]''.
**
Anthony]]''. The dumbest break-up was with the helicopter pilot. First Liz mistook his sister for a secret girlfriend, then he said he couldn't be tied down.



* ''WesternAnimation/TotalDrama'' had a sort of version of this in the second season. Trent became jealous of Duncan and Gwen's friendship, which makes some sense, but also became a ridiculously-clingy stalker and, weirdest of all, out of nowhere developed a supposedly-longstanding obsessive-compulsive fixation with the number nine. Seriously. Different than many of these examples because Gwen did ''not'' immediately run into another man's arms, though the show keeps teasing the idea of her and Duncan getting in a love triangle with Duncan's girlfriend Courtney. Basically, the whole situation was badly-done.

to:

* ''WesternAnimation/TotalDrama'' ''WesternAnimation/TotalDrama'':
** The show
had a sort of version of this in the second season. Trent became jealous of Duncan and Gwen's friendship, which makes some sense, but also became a ridiculously-clingy stalker and, weirdest of all, out of nowhere developed a supposedly-longstanding obsessive-compulsive fixation with the number nine. Seriously. Different than many of these examples because Gwen did ''not'' immediately run into another man's arms, though the show keeps teasing the idea of her and Duncan getting in a love triangle with Duncan's girlfriend Courtney. Basically, the whole situation was badly-done.


* ''Series/DoctorWho'' inverts this with Danny Pink, the RomanticFalseLead of Series 8. He is a genuinely worthy person and caring boyfriend to Clara Oswald, but because she is a ControlFreak who cannot bear to give up her wacky, dangerous adventures with the Twelfth Doctor despite Danny's pleas, she constantly lies to both men to keep up her relationships. When she's ''finally'' ready to settle down with Danny and be completely honest with him, [[spoiler: he is killed in an accident ''and'' subsequently learns how deep her relationship with the Doctor truly goes]], and he thus ends up on the losing end of the relationship in the SeasonFinale. Clara is the Doctor's DistaffCounterpart and chaste lover from "Last Christmas" onward, and that relationship comes to a bittersweet end in the Series 9 finale arc.


* In ''Literature/TheLegendOfDrizzt'', Wulfgar was originally the main character and Cattie-brie his LoveInterest. When Drizzt became the BreakoutCharacter and both [[FanPreferredCouple the fans]] and the author
preferred Drizzt/Cattie-brie, Wulfgar was first killed off to allow the ship to sail, and then when ExecutiveMeddling made Creator/RASalvatore bring him back, it was after seven years of torture and Wulfgar was badly shell-shocked, causing him to mistreat Catti-brie and degenerate into a drunken thug. By the time he was over ''that'', Drizzt and Catti-brie were together for keeps.

to:

* In ''Literature/TheLegendOfDrizzt'', Wulfgar was originally the main character and Cattie-brie his LoveInterest. When Drizzt became the BreakoutCharacter and both [[FanPreferredCouple the fans]] and the author
author preferred Drizzt/Cattie-brie, Wulfgar was first killed off to allow the ship to sail, and then when ExecutiveMeddling made Creator/RASalvatore bring him back, it was after seven years of torture and Wulfgar was badly shell-shocked, causing him to mistreat Catti-brie and degenerate into a drunken thug. By the time he was over ''that'', Drizzt and Catti-brie were together for keeps.

Added DiffLines:

* In ''Literature/TheLegendOfDrizzt'', Wulfgar was originally the main character and Cattie-brie his LoveInterest. When Drizzt became the BreakoutCharacter and both [[FanPreferredCouple the fans]] and the author
preferred Drizzt/Cattie-brie, Wulfgar was first killed off to allow the ship to sail, and then when ExecutiveMeddling made Creator/RASalvatore bring him back, it was after seven years of torture and Wulfgar was badly shell-shocked, causing him to mistreat Catti-brie and degenerate into a drunken thug. By the time he was over ''that'', Drizzt and Catti-brie were together for keeps.


* ''WesternAnimation/{{Futurama}}:'' Season 6's "Proposition Infinity," which uses [[{{Robosexual}} human/robot relationships]] as a metaphor for gay marriage, does this to [[ExtremeDoormat Kif]]. He's suddenly {{Flanderiz|ation}}ed into such a wuss that he's afraid to watch cooking shows because they contain chopping, and [[AsianAirhead Amy]] suddenly becomes utterly disgusted with him, when it was Kif's sweet nature that attracted her to him in the first place. All so Amy can wind up in a relationship with [[JerkWithAHeartOfGold Bender]] that doesn't last to the end of the episode, the last scene of which has her reconcile with Kif. [[SarcasmMode Apparently this was easier than just creating a one-off human love interest for Bender]], or using [[InterspeciesRomance human/alien relationships]] for the metaphor instead or something.
* In Season 6 of ''WesternAnimation/TotallySpies'', [[spoiler: Blaine cheats on Clover with Mandy]] in a very out-of-character moment for him that seemed shoehorned in for the express purpose of [[spoiler:getting Clover single again so she can resume flirting with guys]].

to:

* ''WesternAnimation/{{Futurama}}:'' Season 6's "Proposition Infinity," which uses [[{{Robosexual}} human/robot relationships]] as a metaphor for gay marriage, does this to [[ExtremeDoormat Kif]]. He's suddenly {{Flanderiz|ation}}ed into such a wuss that he's afraid to watch cooking shows because they contain chopping, and [[AsianAirhead Amy]] suddenly becomes utterly disgusted with him, when it was Kif's sweet nature that attracted her to him in the first place. All so Amy can wind up in a relationship with [[JerkWithAHeartOfGold Bender]] that doesn't last to the end of the episode, the last scene of which has her reconcile with Kif. [[SarcasmMode Apparently this was easier than just creating a one-off human love interest for Bender]], or using [[InterspeciesRomance human/alien relationships]] for the metaphor instead or something.
something. It doesn't help that the Bender/Amy romance is (accidentally?) portrayed as being a pretty dysfunctional case of AllGirlsWantBadBoys.
* In Season 6 of ''WesternAnimation/TotallySpies'', [[spoiler: Blaine cheats on Clover with Mandy]] in a very out-of-character moment for him that seemed shoehorned in for the express purpose of [[spoiler:getting Clover getting [[spoiler:Clover]] single again so she can resume flirting with guys]].again.


** The Polaris/Havok/Nurse Annie triangle during his run on ''Uncanny ComicBook/XMen''. While Lorna has never been the most stable of people, Austen [[CharacterExaggeration blew her mental issues]] into [[{{Yandere}} full-blown bitchy psychosis]] to justify getting Havok together with the nurse he telepathically dated while in a coma (caused by her telepath son, Carter, who wanted a daddy and wasn't above committing MindRape to force Havok to be his daddy). This ended with [[RunawayFiance Havok dumping Polaris at the altar]] for [[RelationshipSue Annie]], and Polaris [[AxCrazy flipping her shit and attempting to kill them both]] before Juggernaut knocked her out. Polaris was put into psychic therapy with Professor Xavier; Havok and Annie ran off to Paris together, seemingly supported by ''all'' the other X-Men. Austen wasn't at all shy about telling people that [[AuthorAvatar Annie was a stand-in directly modeled off his own wife and that he envisioned himself as Havok]]; this did nothing to help fans accept the pairing... especially since, after all this, Annie was throwing herself at Iceman ''while still with Havok''! It's no wonder that Austen, upon leaving the book, put Annie [[PutOnABus on a bus out of town with Carter]] to protect his much reviled character from future reprisals. Though Austen did have her last issue feature a nebulous scene where it's implied that Carter has hooked up with Elias Bogan, a disembodied telepath who liked to trick kids into selling their parents to him to use as slaves to rape and torture for his own sick amusement...

to:

** The Polaris/Havok/Nurse ComicBook/{{Polaris|MarvelComics}}/Havok/Nurse Annie triangle during his run on ''Uncanny ComicBook/XMen''.''ComicBook/UncannyXMen''. While Lorna has never been the most stable of people, Austen [[CharacterExaggeration blew her mental issues]] into [[{{Yandere}} full-blown bitchy psychosis]] to justify getting Havok together with the nurse he telepathically dated while in a coma (caused by her telepath son, Carter, who wanted a daddy and wasn't above committing MindRape to force Havok to be his daddy). This ended with [[RunawayFiance Havok dumping Polaris at the altar]] for [[RelationshipSue Annie]], and Polaris [[AxCrazy flipping her shit and attempting to kill them both]] before Juggernaut knocked her out. Polaris was put into psychic therapy with Professor Xavier; Havok and Annie ran off to Paris together, seemingly supported by ''all'' the other X-Men. Austen wasn't at all shy about telling people that [[AuthorAvatar Annie was a stand-in directly modeled off his own wife and that he envisioned himself as Havok]]; this did nothing to help fans accept the pairing... especially since, after all this, Annie was throwing herself at Iceman ''while still with Havok''! It's no wonder that Austen, upon leaving the book, put Annie [[PutOnABus on a bus out of town with Carter]] to protect his much reviled character from future reprisals. Though Austen did have her last issue feature a nebulous scene where it's implied that Carter has hooked up with Elias Bogan, a disembodied telepath who liked to trick kids into selling their parents to him to use as slaves to rape and torture for his own sick amusement...



* ''Franchise/SpiderMan''
** Something similar happened to Black Cat in the comics. For publicity reasons it was decided to have Spider-Man marry at the same time in [[ComicStrip/SpiderMan the newspaper strip]] and [[Comicbook/SpiderMan the comic book]]; unfortunately at the time Peter was dating Felicia Hardy/Black Cat. The solution? Make Felicia go from morally ambiguous cat-burglar to the ally of an assassin for hire. Though the storyline was badly written and not helped by various production delays, this was no derailment. Peter and Felicia had broken up in 1984, about two years before the decision to have him and Mary Jane marry was taken. When the Black Cat started dating Spider-Man again -- in ''Spectacular Spider-Man'' #123 (published a mere five months before Peter proposed to Mary Jane in ''Amazing Spider-Man'' #290), she was in cahoots with the [[KarmaHoudini Foreigner]], the assassin responsible for the murder of Ned Leeds (a.k.a. "The Hobgoblin"). It also was clear from the start that she was motivated by a desire for revenge against Peter for getting ComicBook/DoctorStrange to remove the bad-luck power she had bought from ComicBook/TheKingpin. And this period of dating began with the Black Cat faking a bomb attack on her own apartment to get a pretext to invite herself in as Peter's new flatmate. Felicia is actually a victim of this repeatedly in the comics. The 1984 breakup was due to editors refusing to let Spider-Man have a longterm love interest at the time. As a result, despite showcasing that she would love Peter regardless, her attitude quickly derailed when the big moment came where he finally revealed who he really was to her. Now she refused to accept his Peter Parker identity and only loved him for being Spider-Man, repeatedly risked his identity going public over petty reasons, and constantly harping on Peter whenever he lied or kept a secret from her [[{{Hypocrite}} despite constantly lying about her own aforementioned Kingpin deal]], ultimately turning into a fullblown selfish whiny brat. After Peter and Mary Jane were married, she was reintroduced and turned into a crazy {{Yandere}} who even physically threatened Mary Jane. After this period she finally went through some much needed fixing, and for a good period of time her character went back to the way she originally was. Then ComicBook/SuperiorSpiderMan happened, having her be arrested by the new Spider-Man and subsequently become a crime boss after getting out of prison, outright ignoring the fact that she was not wronged by Peter himself.

to:

* ''Franchise/SpiderMan''
''Franchise/SpiderMan'':
** Something similar happened to Black Cat ComicBook/BlackCat in the comics. For publicity reasons it was decided to have Spider-Man marry at the same time in [[ComicStrip/SpiderMan the newspaper strip]] and [[Comicbook/SpiderMan the comic book]]; unfortunately at the time Peter was dating Felicia Hardy/Black Cat. The solution? Make Felicia go from morally ambiguous cat-burglar to the ally of an assassin for hire. Though the storyline was badly written and not helped by various production delays, this was no derailment. Peter and Felicia had broken up in 1984, about two years before the decision to have him and Mary Jane ComicBook/{{Mary Jane|Watson}} marry was taken. When the Black Cat started dating Spider-Man again -- in ''Spectacular Spider-Man'' #123 (published a mere five months before Peter proposed to Mary Jane in ''Amazing Spider-Man'' #290), she was in cahoots with the [[KarmaHoudini Foreigner]], the assassin responsible for the murder of Ned Leeds (a.k.a. "The Hobgoblin"). It also was clear from the start that she was motivated by a desire for revenge against Peter for getting ComicBook/DoctorStrange to remove the bad-luck power she had bought from ComicBook/TheKingpin. And this period of dating began with the Black Cat faking a bomb attack on her own apartment to get a pretext to invite herself in as Peter's new flatmate. Felicia is actually a victim of this repeatedly in the comics. The 1984 breakup was due to editors refusing to let Spider-Man have a longterm love interest at the time. As a result, despite showcasing that she would love Peter regardless, her attitude quickly derailed when the big moment came where he finally revealed who he really was to her. Now she refused to accept his Peter Parker identity and only loved him for being Spider-Man, repeatedly risked his identity going public over petty reasons, and constantly harping on Peter whenever he lied or kept a secret from her [[{{Hypocrite}} despite constantly lying about her own aforementioned Kingpin deal]], ultimately turning into a fullblown selfish whiny brat. After Peter and Mary Jane were married, she was reintroduced and turned into a crazy {{Yandere}} who even physically threatened Mary Jane. After this period she finally went through some much needed fixing, and for a good period of time her character went back to the way she originally was. Then ComicBook/SuperiorSpiderMan happened, having her be arrested by the new Spider-Man and subsequently become a crime boss after getting out of prison, outright ignoring the fact that she was not wronged by Peter himself.



** The aftermath of the ''ComicBook/SuperiorSpiderMan'' run? MJ and Carlie pulling a ScrewThisImOuttaHere and leaving New York because they're fed up of being potential victims to anybody who has a grudge with Spider-Man (and MJ starts to date a fire-fighter, who is pretty much Peter without the powers, though she does see Peter yet again in the "Who Am I" mini-series which her influence restores an amnesia-ridden Peter's memories and he saves her life), and Black Cat pulling a WomanScorned FaceHeelTurn and wanting to destroy Spider-Man (and become the next Kingpin) because Otto destroyed her life and now she is not going to take Peter's apology unless she pries it from his dead body (and considering one of the first things she does is ''send Electro to kill Spider-Man'', she is either teetering close to the MoralEventHorizon or has passed it but it's imperceptible). All to promote [[CreatorsPet Silk]] as Spider-Man's new love interest.

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** The aftermath of the ''ComicBook/SuperiorSpiderMan'' run? MJ and Carlie pulling a ScrewThisImOuttaHere and leaving New York because they're fed up of being potential victims to anybody who has a grudge with Spider-Man (and MJ starts to date a fire-fighter, who is pretty much Peter without the powers, though she does see Peter yet again in the "Who Am I" mini-series which her influence restores an amnesia-ridden Peter's memories and he saves her life), and Black Cat pulling a WomanScorned FaceHeelTurn and wanting to destroy Spider-Man (and become the next Kingpin) because Otto destroyed her life and now she is not going to take Peter's apology unless she pries it from his dead body (and considering one of the first things she does is ''send Electro to kill Spider-Man'', she is either teetering close to the MoralEventHorizon or has passed it but it's imperceptible). All to promote [[CreatorsPet Silk]] ComicBook/{{Silk}} as Spider-Man's new love interest.



* Devin Grayson was a comic book writer who got to be in charge of the late '90s [[ComicBook/TeenTitans Titans]] run. So far, so good. There's a problem, though... her OTP was Barbara/Dick, but some writers preferred him with Koriand'r. What was Devin's solution? [[DieForOurShip/ComicBooks Bash the shit out of Kory by making her an absolute bitch to Dick, so he can run back into Babs's arms.]] Dick and Kory had been long broken up since the end of Wolfman's run, but Grayson's character derailment simply made things worse, especially since the two agreed that they could simply be very good friends at the end of ''The Technis Imperative'' (a mini-series co-plotted by Grayson and Phil Jimenez that led to her run).

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* Devin Grayson was a comic book writer who got to be in charge of the late '90s [[ComicBook/TeenTitans Titans]] run. So far, so good. There's a problem, though... her OTP was Barbara/Dick, but some writers preferred him with Koriand'r.[[ComicBook/{{Starfire}} Koriand'r]]. What was Devin's solution? [[DieForOurShip/ComicBooks Bash the shit out of Kory by making her an absolute bitch to Dick, so he can run back into Babs's arms.]] Dick and Kory had been long broken up since the end of Wolfman's run, but Grayson's character derailment simply made things worse, especially since the two agreed that they could simply be very good friends at the end of ''The Technis Imperative'' (a mini-series co-plotted by Grayson and Phil Jimenez that led to her run).



* Similar to Chuck Austin, Creator/GrantMorrison went this way with his ''X-Men'' run. Creator/JoeQuesada wanted to break up Comicbook/{{Cyclops}} and Jean, so he told Grant to kill her off. Perfectly normal in a super hero comic, but instead of just letting her die in a good, heroic way or even stuffing her in a fridge like most writers do, he decided the best way was to derail Jean, Scott, and Emma Frost in order to make a "love triangle" before killing off Jean so Scott can get together with Emma. To do so, he had Cyke, currently in a dark place following his merger with Apocalypse, seek therapy to deal with his issues, which Emma provides with her previously-never-mentioned PHD in psychology. Then, she has psychic mind sex with him to let him live out his deepest sexual fantasies that Jean would never do so, while projecting the image of Jean. Jean at first is rightfully pissed at the two, especially Emma, but she receives no punishment since she 'did it out of love' for Scott, despite the fact the [[StrangledByTheRedString two had never previously had much interaction beyond the psychic sex]], and ''Jean'' is called out for having no sympathy for her. So, Jean forgives them all, only to be killed by Magneto despite being the Phoenix (and as such, immortal) at the timewith Jean then pushing Scott beyond the grave to move on. So in short, who was supposed to be 'in the right' was emotionally manipulating a man and is rewarded with becoming the second in command, the ''real'' victim of the situation is made out to be a boring and dull prude, and the man in the middle is essentially mind raped when he needed therapy (which he never got, possibly explaining his own latent CharacterDerailment) and ends up looking like a tool and a douche.

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* Similar to Chuck Austin, Creator/GrantMorrison went this way with his ''X-Men'' run. Creator/JoeQuesada wanted to break up Comicbook/{{Cyclops}} and Jean, so he told Grant to kill her off. Perfectly normal in a super hero comic, but instead of just letting her die in a good, heroic way or even stuffing her in a fridge like most writers do, he decided the best way was to derail Jean, Scott, and Emma Frost in order to make a "love triangle" before killing off Jean so Scott can get together with Emma. To do so, he had Cyke, currently in a dark place following his merger with Apocalypse, seek therapy to deal with his issues, which Emma provides with her previously-never-mentioned PHD in psychology. Then, she has psychic mind sex with him to let him live out his deepest sexual fantasies that Jean would never do so, while projecting the image of Jean. Jean at first is rightfully pissed at the two, especially Emma, but she receives no punishment since she 'did it out of love' for Scott, despite the fact the [[StrangledByTheRedString two had never previously had much interaction beyond the psychic sex]], and ''Jean'' is called out for having no sympathy for her. So, Jean forgives them all, only to be killed by Magneto despite being the Phoenix (and as such, immortal) at the timewith time with Jean then pushing Scott beyond the grave to move on. So in short, who was supposed to be 'in the right' was emotionally manipulating a man and is rewarded with becoming the second in command, the ''real'' victim of the situation is made out to be a boring and dull prude, and the man in the middle is essentially mind raped when he needed therapy (which he never got, possibly explaining his own latent CharacterDerailment) and ends up looking like a tool and a douche.



* Subverted in ''WesternAnimation/TheLEGOMovie''. Batman is clearly set up as a RomanticFalseLead character, culminating in a scene where he seemingly announces ScrewThisImOutOfHere in the middle of a crisis, running off to the Millennium Falcon to hang out with Han Solo (and insisting to his girlfriend that part of his relationship is being able to ditch her and party whenever he wants). His girlfriend is furious, TheHero proposes that she stop going out with him because he's a jerk and doesn't respect her... and Batman reappears, having stolen a vital component from the Millennium Falcon that he needs to solve their crisis.

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* Subverted in ''WesternAnimation/TheLEGOMovie''. Batman is clearly set up as a RomanticFalseLead character, culminating in a scene where he seemingly announces ScrewThisImOutOfHere ScrewThisImOuttaHere in the middle of a crisis, running off to the Millennium Falcon to hang out with Han Solo (and insisting to his girlfriend that part of his relationship is being able to ditch her and party whenever he wants). His girlfriend is furious, TheHero proposes that she stop going out with him because he's a jerk and doesn't respect her... and Batman reappears, having stolen a vital component from the Millennium Falcon that he needs to solve their crisis.



* Deconstructed in ''Film/YoungAdult''. The main character Mavis (a whiny [[ManChild Girl-Child]] is convinced that she can seduce her ex-boyfriend to be with her again, despite the fact that he has a new kid. It turns out [[spoiler: his wife feels sorry for Mavis and leaving her never entered her ex's mind.]]

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* Deconstructed in ''Film/YoungAdult''. The main character Mavis (a whiny [[ManChild Girl-Child]] is convinced that she can seduce her ex-boyfriend to be with her again, despite the fact that he has a new kid. It turns out [[spoiler: his wife feels sorry for Mavis and leaving her never entered her ex's mind.]]mind]].



* In ''Film/KickAss2'', Dave's girlfriend Katie, having been thoroughly established as a genuine NiceGirl in the first film, is suddenly derailed into a jerk that has been cheating on him, right before she dumps him. It's possible that having Katie Dave's girlfriend in the movie wouldn't have meshed with the story in the comic where they never were together (in fact, she was already seeing someone and when Dave learned all of this from her, her beau punched him in the face). This is to facilitate his romance with Hit-Girl.
* Similarly, in ''Film/TheInbetweeners2'', Lucy changes from a NiceGirl who Simon got into a relationship with at the end of the previous film to a {{Yandere}} who deletes friends from his Facebook account, destroys his possessions [[spoiler: and is cheating on him with Pete.]]

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* In ''Film/KickAss2'', Dave's girlfriend Katie, having been thoroughly established as a genuine NiceGirl in the first film, is suddenly derailed into a jerk that has been cheating on him, right before she dumps him. It's possible that having Katie as Dave's girlfriend in the movie wouldn't have meshed with the story in [[ComicBook/KickAss the comic comic]] where they never were together (in fact, she was already seeing someone and when Dave learned all of this from her, her beau punched him in the face). This is to facilitate his romance with Hit-Girl.
* Similarly, in ''Film/TheInbetweeners2'', Lucy changes from a NiceGirl who Simon got into a relationship with at the end of the previous film to a {{Yandere}} who deletes friends from his Facebook account, destroys his possessions [[spoiler: and is cheating on him with Pete.]]Pete]].



* Gatsby is trying to invoke this in ''Literature/TheGreatGatsby'' with Daisy by getting her away from Tom. Unfortunately, [[spoiler: all Gatsby gets is to be the other guy in an affair, and ends up dead when Tom's mistress is killed, and her husband murders Gatsby thinking he killed her, and Daisy and Tom stay together, despite their shallow marriage.]]

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* Gatsby is trying to invoke this in ''Literature/TheGreatGatsby'' with Daisy by getting her away from Tom. Unfortunately, [[spoiler: all Gatsby gets is to be the other guy in an affair, and ends up dead when Tom's mistress is killed, and her husband murders Gatsby thinking he killed her, and Daisy and Tom stay together, despite their shallow marriage.]]marriage]].



* While Cho's behavior in ''Literature/HarryPotterAndTheOrderOfThePhoenix'' is [[JustifiedTrope justified]] since she is in mourning and not really ready for another relationship after [[spoiler: Cedric's murder]], she becomes a ClingyJealousGirl after hooking up with Harry. They don't last that long but do become AmicableExes.

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* While Cho's behavior in ''Literature/HarryPotterAndTheOrderOfThePhoenix'' is [[JustifiedTrope justified]] {{justified|Trope}} since she is in mourning and not really ready for another relationship after [[spoiler: Cedric's murder]], she becomes a ClingyJealousGirl after hooking up with Harry. They don't last that long but do become AmicableExes.



** [[ZigZaggingTrope Zig-zagged]] with Heath, he starts a drunk-jock-ex-boyfriend in ''Marked'' who looks in danger of being written off for good a number of times. He stays in the story almost completely by one virtue: the fact that he's taking advantage of Zoey's low self-control over her new bloodlust to essentially roofie-rape her every time she sees him by cutting himself and triggering her compulsion to drink: an action that's both intensely arousing, energizing, and creates a mystical bond between them against her control. Then of course she realizes he's her soul-mate (one of them anyway) after he almost gets himself killed trying to win her back again, and all that is swept under the rug. He is then [[spoiler:killed off]] in ''Tempted'', but then [[spoiler:is reincarnated by Nyx to be Neferet's Vessel, named Aurox.]] However, [[spoiler:Aurox retains some of his free will and is eventually able to choose the side of Light, thanks to his soul connection with Zoey]], so we don't know what to expect.

to:

** [[ZigZaggingTrope Zig-zagged]] with Heath, he starts a drunk-jock-ex-boyfriend in ''Marked'' who looks in danger of being written off for good a number of times. He stays in the story almost completely by one virtue: the fact that he's taking advantage of Zoey's low self-control over her new bloodlust to essentially roofie-rape her every time she sees him by cutting himself and triggering her compulsion to drink: an action that's both intensely arousing, energizing, and creates a mystical bond between them against her control. Then of course she realizes he's her soul-mate (one of them anyway) after he almost gets himself killed trying to win her back again, and all that is swept under the rug. He is then [[spoiler:killed off]] in ''Tempted'', but then [[spoiler:is reincarnated by Nyx to be Neferet's Vessel, named Aurox.]] Aurox]]. However, [[spoiler:Aurox retains some of his free will and is eventually able to choose the side of Light, thanks to his soul connection with Zoey]], so we don't know what to expect.



* ''Literature/SweetValleyHigh'' and its spin-offs pulled this several times, usually to have the girls dump a one-shot love interest and return to their regular boyfriends, because StatusQuoIsGod.
** This is actually averted when Todd Wilkins returns to town only to find Elizabeth happily dating Jeffrey French. Even though by the book's end Elizabeth does dump Jeffrey for Todd and Jeffrey is left hurt and angry, at no time does he ever turn into a psycho. He even manages to pull an IWantMyBelovedToBeHappy in the midst of all his grief.

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* ''Literature/SweetValleyHigh'' and its spin-offs pulled this several times, usually to have the girls dump a one-shot love interest and return to their regular boyfriends, because StatusQuoIsGod. \n** This is actually averted when Todd Wilkins returns to town only to find Elizabeth happily dating Jeffrey French. Even though by the book's end Elizabeth does dump Jeffrey for Todd and Jeffrey is left hurt and angry, at no time does he ever turn into a psycho. He even manages to pull an IWantMyBelovedToBeHappy in the midst of all his grief.



* Gale Hawthorne might be one in ''Literature/TheHungerGames''. His personality is the same in the third book, but his beliefs get more pronounced, he clashes more often with Katniss, and he ends up inadvertantly [[spoiler:killing Primrose by having designed the trap that Coin deployed, which took Prim's life]]. [[WordOfGod Suzanne Collins]] has never made it a secret that Gale was not supposed to be a love interest, and was in fact Katniss' cousin in the original version of the books, but [[ExecutiveMeddling the publishers demanded a love triangle in the wake of Twilight]]. Whether this makes it more likely that Gale was deliberately derailed or not is up for debate.

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* Gale Hawthorne might be one in ''Literature/TheHungerGames''. His personality is the same in the third book, but his beliefs get more pronounced, he clashes more often with Katniss, and he ends up inadvertantly inadvertently [[spoiler:killing Primrose by having designed the trap that Coin deployed, which took Prim's life]]. [[WordOfGod Suzanne Collins]] has never made it a secret that Gale was not supposed to be a love interest, and was in fact Katniss' cousin in the original version of the books, but [[ExecutiveMeddling the publishers demanded a love triangle in the wake of Twilight]]. Whether this makes it more likely that Gale was deliberately derailed or not is up for debate.



** David, to some extent. During his sporadic appearances in the first nine seasons, he's shown to be a kind and compassionate person with a successful career and genuine affection for Phoebe. In his final appearance at the end of Season Nine, he's suddenly a pathetic loser who can't even afford to buy a legitimate diamond ring for Phoebe. At the end of the season, [[spoiler: Phoebe dumps him in the most callous and humiliating manner possible, and Mike becomes her love interest for the rest of the series.]]

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** David, to some extent. During his sporadic appearances in the first nine seasons, he's shown to be a kind and compassionate person with a successful career and genuine affection for Phoebe. In his final appearance at the end of Season Nine, he's suddenly a pathetic loser who can't even afford to buy a legitimate diamond ring for Phoebe. At the end of the season, [[spoiler: Phoebe dumps him in the most callous and humiliating manner possible, and Mike becomes her love interest for the rest of the series.]]series]].



* Played straight in ''Series/{{Glee}}'': After [[OfficialCouple Rachel and Finn]]'s sort-of relationship hits a rut, she meets Jesse St. James, the lead singer of rival Glee club Vocal Adrenaline. Naturally he's her equal, understands her perfectly, etcetera. When he is very obviously TheMole, he admits that [[BecomingTheMask he's starting to have feelings for her]]. Right after ''that'' happens, of course, he becomes utterly cruel with the [[spoiler: egg-assault in the parking lot and him acting like she somehow did something to deserve it]], especially since the last time we saw them they were perfectly happy together and she had done nothing to upset him. It's clear he's only doing it because he wants to go back to Vocal Adrenaline so that he can win a fourth national show-choir championship, and needs to prove his loyalty to the team above all else. [[spoiler: But it may be subverted. TheBusCameBack with him on board, and he ends up apologizing to Rachel and is obviously still very much in love with her. However, she didn't care and got back with Finn]].

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* Played straight in ''Series/{{Glee}}'': After [[OfficialCouple Rachel and Finn]]'s sort-of relationship hits a rut, she meets Jesse St. James, the lead singer of rival Glee club Vocal Adrenaline. Naturally he's her equal, understands her perfectly, etcetera. When he is very obviously TheMole, he admits that [[BecomingTheMask he's starting to have feelings for her]]. Right after ''that'' happens, of course, he becomes utterly cruel with the [[spoiler: egg-assault in the parking lot and him acting like she somehow did something to deserve it]], especially since the last time we saw them they were perfectly happy together and she had done nothing to upset him. It's clear he's only doing it because he wants to go back to Vocal Adrenaline so that he can win a fourth national show-choir championship, and needs to prove his loyalty to the team above all else. [[spoiler: But it may be subverted. TheBusCameBack with him on board, and he ends up apologizing to Rachel and is obviously still very much in love with her. However, she didn't care and got back with Finn]].Finn.]]



* ''Series/{{Smallville}}'' made a habit of this with Lana's love interests. Jason Teague was thrown into the TitleSequence in his very first appearance, only to get less and less screentime until, at the end of the season, [[spoiler:he was revealed as a member of some ridiculous secret society and then [[DroppedABridgeOnHim unceremoniously killed]]... by meteors.]] This was only one season after Lana's previous boyfriend, Adam, became increasingly unstable and villainous...[[spoiler: before dying of delayed liver failure while trying to shoot her.]] This seemed to happen with Whitney, her original boyfriend who was PutOnABus at the end of season one, when TheBusCameBack in season two and he immediately started being sinister and throwing Clark through doors, until it turned out that actually he [[spoiler:was dead; the villainous version was her [[VoluntaryShapeshifting shape-shifting]] StalkerWithACrush]].

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* ''Series/{{Smallville}}'' made a habit of this with Lana's love interests. Jason Teague was thrown into the TitleSequence in his very first appearance, only to get less and less screentime until, at the end of the season, [[spoiler:he was revealed as a member of some ridiculous secret society and then [[DroppedABridgeOnHim unceremoniously killed]]... by meteors.]] meteors]]. This was only one season after Lana's previous boyfriend, Adam, became increasingly unstable and villainous...[[spoiler: before dying of delayed liver failure while trying to shoot her.]] This seemed to happen with Whitney, her original boyfriend who was PutOnABus at the end of season one, when TheBusCameBack in season two and he immediately started being sinister and throwing Clark through doors, until it turned out that actually he [[spoiler:was dead; the villainous version was her [[VoluntaryShapeshifting shape-shifting]] StalkerWithACrush]].



* Happens to Nick in ''Series/HowIMetYourMother'', who was originally depicted as a hot guy who was both mature and had subtle snarker tendencies. But later in season eight, he becomes "girly", overly sensitive, has [[GranolaGirl Granola Guy]] tastes and [[TheDitz is a complete idiot.]] There was attempted justification that he was an idiot all along but was too hot for Robin to notice that.

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* Happens to Nick in ''Series/HowIMetYourMother'', who was originally depicted as a hot guy who was both mature and had subtle snarker tendencies. But later in season eight, he becomes "girly", overly sensitive, has [[GranolaGirl Granola Guy]] {{Granola G|irl}}uy tastes and [[TheDitz is a complete idiot.]] There was attempted justification that he was an idiot all along but was too hot for Robin to notice that.



* In ''Series/BlackLightning'', Anissa's girlfriend starts the show as loving and compassionate, and their relationship is loving and full of passion, to the point where Anissa is comfortable telling her about her growing powers. Then, in episode 3, the girl inexplicably becomes jealous, paranoid, and racist, and Anissa suddenly claims that the relationship has been going downhill for awhile. No sign of that has been shown in the two previous episodes. All this seems to be done to allow Anissa to hook up with Grace, who might be more supportive of her becoming a superhero.

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* In ''Series/BlackLightning'', ''Series/BlackLightning2018'', Anissa's girlfriend starts the show as loving and compassionate, and their relationship is loving and full of passion, to the point where Anissa is comfortable telling her about her growing powers. Then, in episode 3, the girl inexplicably becomes jealous, paranoid, and racist, and Anissa suddenly claims that the relationship has been going downhill for awhile. No sign of that has been shown in the two previous episodes. All this seems to be done to allow Anissa to hook up with Grace, who might be more supportive of her becoming a superhero.



* ''Theatre/LoveNeverDies'', the sequel to Creator/AndrewLloydWebber's ''ThePhantomOfTheOpera'', does this to poor Raoul. In the first show, he was Christine's sweetheart: dashing, brave, and protective of his childhood friend. In the sequel, set ten years later, he is an alcoholic gambler who's blown his fortune, ignores his ten-year-old son, and is snippy with his wife. This is all an attempt to justify Christine considering running back into the arms of ''a mentally-unstable stalker and murderer''.

to:

* ''Theatre/LoveNeverDies'', the sequel to Creator/AndrewLloydWebber's ''ThePhantomOfTheOpera'', ''Theatre/ThePhantomOfTheOpera'', does this to poor Raoul. In the first show, he was Christine's sweetheart: dashing, brave, and protective of his childhood friend. In the sequel, set ten years later, he is an alcoholic gambler who's blown his fortune, ignores his ten-year-old son, and is snippy with his wife. This is all an attempt to justify Christine considering running back into the arms of ''a mentally-unstable stalker and murderer''.



* ''WesternAnimation/FamilyGuy'': Quagmire gets engaged to a calm and attractive maid. Throughout the episode, the relationship was loving and Quagmire even lost interest in other women. Peter and the gang's attempts to get Quagmire back to his old womanizing ways fail, up until the wedding reception, where Peter's actions with Lois remind Quagmire of what he really wants. Then his cheerful patient bride to be is revealed to be a self-destructive {{Yandere}} out of nowhere, therefore absolving Quagmire of getting out of the relationship. StatusQuoIsGod in this show, so the relationship was unlikely to survive the episode.

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* ''WesternAnimation/FamilyGuy'': ''WesternAnimation/FamilyGuy'':
**
Quagmire gets engaged to a calm and attractive maid. Throughout the episode, the relationship was loving and Quagmire even lost interest in other women. Peter and the gang's attempts to get Quagmire back to his old womanizing ways fail, up until the wedding reception, where Peter's actions with Lois remind Quagmire of what he really wants. Then his cheerful patient bride to be is revealed to be a self-destructive {{Yandere}} out of nowhere, therefore absolving Quagmire of getting out of the relationship. StatusQuoIsGod in this show, so the relationship was unlikely to survive the episode.



* ''WesternAnimation/{{Futurama}}:'' Season 6's "Proposition Infinity," which uses [[{{Robosexual}} human/robot relationships]] as a metaphor for gay marriage, does this to [[ExtremeDoormat Kif]]. He's suddenly {{Flanderized}} into such a wuss that he's afraid to watch cooking shows because they contain chopping, and [[AsianAirhead Amy]] suddenly becomes utterly disgusted with him, when it was Kif's sweet nature that attracted her to him in the first place. All so Amy can wind up in a relationship with [[JerkWithAHeartOfGold Bender]] that doesn't last to the end of the episode, the last scene of which has her reconcile with Kif. [[SarcasmMode Apparently this was easier than just creating a one-off human love interest for Bender]], or using [[InterspeciesRomance human/alien relationships]] for the metaphor instead or something.

to:

* ''WesternAnimation/{{Futurama}}:'' Season 6's "Proposition Infinity," which uses [[{{Robosexual}} human/robot relationships]] as a metaphor for gay marriage, does this to [[ExtremeDoormat Kif]]. He's suddenly {{Flanderized}} {{Flanderiz|ation}}ed into such a wuss that he's afraid to watch cooking shows because they contain chopping, and [[AsianAirhead Amy]] suddenly becomes utterly disgusted with him, when it was Kif's sweet nature that attracted her to him in the first place. All so Amy can wind up in a relationship with [[JerkWithAHeartOfGold Bender]] that doesn't last to the end of the episode, the last scene of which has her reconcile with Kif. [[SarcasmMode Apparently this was easier than just creating a one-off human love interest for Bender]], or using [[InterspeciesRomance human/alien relationships]] for the metaphor instead or something.

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