Harry: Serves you right for coming with him!
Hermione: I thought he'd annoy Ron most.
A specific type of Zany Scheme: Two characters, Alice and Bob, are an Official Couple... or they would be, if Bob wasn't so mired in the river of denial that he insists that the water flowing all around him is solid ground. Alice, who is not in denial and very aware of Bob's feelings, gets fed up with his refusal to spit them out and takes matters into her own hands. Confronting him directly with the evidence might cause him to run for the hills, so Alice decides to invoke Green-Eyed Epiphany: She gets into a faked or temporary relationship with Convenient Charlie, to make Bob insanely jealous enough to come clean first.
Hopefully, the operation succeeds. Hopefully, Charlie isn't too insufferable or bland and doesn't drive Alice insane first. Hopefully, he won't be heartbroken and furious when he finds out Alice was just using him. Hopefully, Bob doesn't take this as a sign that he doesn't have a chance with Alice. Hopefully, Bob doesn't just want his beloved to be happy. Hopefully, Bob doesn't fail to notice because he has the awareness of a brick. Hopefully, Bob doesn't fall for it so thoroughly that he pulls a Counter Zany that Alice thoroughly falls for! And hopefully, Alice doesn't actually fall for Charlie...
Be a Whore to Get Your Man is related.
- In Spider-Man Betty Brant originally started dating Ned Leeds to make Peter jealous, but he was too busy to notice and eventually she fell in love with Ned for real.
- Played with in Spider-Girl. May's best friend, Davida, started to date Wess, because May was the only person in the school unaware that Wess was in love with her and Davida wanted to give him a chance to get her attention.
- Numerous people, ranging from Jimmy's fan club to Supergirl herself, pulled this trick on Lucy Lane in "Superman's Pal, Jimmy Olsen". Lucy, being a dog-in-the-manger, would fall for it... and then go directly back to resenting Jimmy's attentions as soon as the story was over.
- In one DiDi Glitz comic, a lesbian is doing this with the main character, successfully.
Butch Lesbian to DiDi: Hey, blondie — take your paws off my girl or I'll kick your ass!
- In the Sabrina the Teenage Witch story "Double Dummy", Sabrina's boyfriend Harvey refuses to pay to see a movie with her, so Sabrina goes out with Reggie Mantle instead. Harvey gets upset, saying, "I'll bet she wouldn't act that way if I told her I was going with another girl to a drive-in!" This inspires him to buy an inflatable doll and dress it up in his mother's clothes and wig. At the drive-in, Sabrina sees Harvey with the doll and gets upset. She slings her purse at him, but hits the doll instead, causing its head to explode. As Harvey's punishment for deceiving her, Sabrina brings the doll to life and makes it chase after him.
Reggie: Tell me I'm not seeing what I think I see!
Sabrina: I don't know what you're talking about!
- Non-romantic example, but quite infamously done in Robin after Tim Drake resigns from the role, and Batman instead gives the mantle to Stephanie Brown, Tim's girlfriend the vigilante known as Spoiler. Steph herself is in-part taking the mantle because she thought Tim was cheating on her and wanted to make him jealous, but Batman was explicitly and only taking her on to annoy Tim. Batman's treatment of Steph was bad and rife with emotional abuse, holding her to a much higher standard than any other Robin beforehand while not trusting her even to a fraction of what he did the others, which ultimately lead her to become so desperate for his approval she instigated a back-up plan of his that (thanks to him never informing her of key information that even his enemies knew) resulted in starting a gang war that ultimately lead to her apparent death.
- A similar, though far less extreme case happened previously in The Flash; to get his nephew from the future, Bart Allen AKA Impulse, to take his legacy as the Flash seriously, Wally West gave the Flash legacy to Jesse Chambers, the semi-related speedster known as Jesse Quick. Unlike Batman and Robin, it worked and Impulse did take things more seriously, though when he and Jesse found out why Wally did this, they were pissed. This was somewhat justified as unlike Batman, Wally was desperate; he believed he was dying but had seen the future and saw that shortly after his 'death', Linda Park, his girlfriend, was killed by Kobra, and he wanted to make sure his successor was ready to take over and save her. And also, unlike Batman, Wally realised what a dick move this was and apologised for it after, and made peace with them both.
- Wonder Woman (1942): Firra suggests that Renno pay more attention to her than Wonder Girl at a dance to make Wonder Girl jealous, but the mermaid had rather underestimated how much her friend had already annoyed Wonder Girl.
- In one Jucika strip ("Jucika Reconciles"), Jucika comes upon an arguing couple and starts flirting with the guy. Though it earns her an off-screen beating from the girl, it has the intended effect of getting the two to make amends and walk off together.
- Employed by Johnson in PreTeena when he gets tired of Jeri Keene brushing him off. He holds out his platonic friend Candy as Schmuck Bait to get Jeri interested in fighting a rival for him. It works.
- We get a double dose in Pyrrha(c) Victory in the aptly titled chapters "Jealousy I and II". At this point in the story, Pyrrha knows that Jaune likes her, but Jaune won't do anything because he believes that she can do better than him, so she decides to ask Sun, who is in on the plan, to the Beacon Dance to make Jaune jealous. Blake, angry that the guy she was going to ask is being used like this, decides to ask Jaune to the the dance to both make Sun jealous and give Pyrrha A Taste Of Her Own Medicine.
- Played with in the Firefly/Doctor Who crossover The Man with No Name. Kaylee pretends to like the Doctor in order to make Simon jealous, but it's only to screw with his head. Well, that and she's quite happy to stare at his butt on general principles.
- Atlas Strongest Tournament: Ran Biao seduces Spike just to hurt Rarity who she used to, and still-sorta-does, have feelings for.
- Yahiko in A Growing Affection tries to do this for Nagato and Konan. He fails because Nagato is willing to step out of the way for Yahiko, and Konan is too afraid of breaking up the group to reject Yahiko.
- From the LDD-fanfiction Bridge to Terabithia 2: The Last Time, with the second chapter being in a University setting. Jess Aarons and Leslie Burke are now dating each other, but Jess suddenly develops feelings for Amelia Edmunds, niece of his old music teacher and former crush Julia Edmunds who happens to be in the same class with him. When Jess ends up kissing Amelia after a bet gone wrong, a rather jealous Leslie convinces Amelia (whom she is also friends with, but is oblivious that Jess and Leslie are romantically involved) to go on a date with Jess. It ends up with Amelia pressuring Jess to have sex with her, causing him to suffer a mental breakdown and decide to go back to Leslie.
- Children of an Elder God: In chapter 4 Asuka sees her crush Kaji flirting with Misato and clung to Shinji to make Kaji jealous. Kaji did not even notice her antics, goading her to try harder. Her ploy failed and anyway she eventually fell for Shinji.
- In Fallout: Equestria, after having a fight with Calamity, Velvet Remedy flirted with Littlepip to get back at him. However, Littlepip was wise to her plan and put a stop to it.
- In the Legend of Korra fanfic Chaos Theories, Ghazan and P'li try to do this to make Zaheer jealous. It works, eventually, but Zaheer is convinced that Ghazan is doing it to make Ming-Hua jealous.
- A Night to Remember has Starfire attempting to make Robin jealous by dating someone she met during a social event. The problem is, the other guy is Richard Grayson.
- In A Scheming Severus, Snape gets Harry to admit his feelings by having Draco pretend-flirt with Snape.
- Change Of Plans, a Total Drama fanfic, begins with an Alternate Universe take on "The Ex-Files" where Courtney tries this trope with Cody instead of Tyler. Ultimately this results in Cody and Courtney actually getting together.
- In the Life Is Strange fanfic Letters From Tomorrow, Juliet mentions the same "cunning plan" she had in the game: Flirt with Logan to make her boyfriend Zach jealous after he sexted someone else. Unlike the game, she tells this plan to Chloe, who expresses doubt that it will work. Juliet just says "I know my man." After Chloe convinces Juliet that Logan is too much a sleaze for this operation and just helps her herself, Juliet is proven right; she's back together with Zach less than ten minutes later.
- Seen in Skyhold Academy Yearbook, when original characters Jim and Rory write fanfic about their teachers and submit it for a grade. Nothing of the sort ever actually happens in the series proper; but in their Story Within a Story, Dorian persuades his friend Evvy to go on a date with another man in an effort to make Cullen jealous. The teachers read it out loud in the staff lounge and are basically in hysterics the entire time.
- Alya accuses Marinette of this in The One to Make It Stay, claiming that she only started dating Luka in order to make Adrien jealous. She's completely wrong; she just wants to believe otherwise because she's been pushing really hard to hook her up with Adrien.
- Later, she attempts to invoke this herself. Convinced that Marinette only dislikes Lila because she's secretly jealous, Alya tries to arrange for Adrien and Lila to go out, believing this will get Mari to dump Luka and start pursuing her old crush again. Note that she doesn't clear this with Lila first, assuming that such a Nice Girl will be more than happy to help, and only has second thoughts when she misreads Adrien's hesitance and reluctance as a sign that he's got a crush on Lila.
- White Sheep (RWBY): Salem really wants Cinder to marry her son Jaune; at Watts' suggestion, she sends Cinder pictures of Jaune on a date with Yang in an effort to get her jealous and inflame her competitive spirit (note that Salem would prefer Jaune marry both of them; she really wants grandkids). Watts, of course, doesn't particularly care if this plan works, he just thinks it's fun to needle Cinder.
- "Weird Al" Yankovic's "My Baby's in Love With Eddie Vedder":
Well, I don't wear Doc Martens and I don't wear flannel
And I don't boycott the music video channel
And I just can't compete with all that money and fame
But I know two can play at this kinda game
So let's just see how jealous she'll get
When I start stalking Alanis Morissette!
- "Hot Dog, That Made Him Mad" by Wanda Jackson:
I've got a guy, I like him fine
But he takes me granted all of the time
To teach him a lesson and make him mad
I went out on a date with the best friend he had
That made him mad, boy
Hot dog, that made him mad
And he hugged me and he kissed me
And he asked me not to do it again
- "Judy's Turn to Cry", the Sequel Song to "It's My Party", by Lesley Gore. The motivation to get Johnny back from Judy is as follows:
Oh, one night I saw them kissing at a party
So I kissed some other guy
Johnny jumped up and he hit him
'Cause he still loves me, that's why
- In A Little Night Music, Charlotte decides to throw herself at Fredrik at Mme. Armfeldt's dinner, with the intention of making her own husband Carl-Magnus jealous enough to give up Desirée as his mistress. She lets Fredrik's young wife, Anne, in on the plan since Fredrik is also pursuing Desirée. The plan seems to fail at first, as Carl-Magnus can see that Desirée remains the actual object of Fredrik's desires. However, Carl-Magnus's jealousy is abruptly aroused when he later spies Fredrik and Charlotte sitting on a garden bench together. A round of Russian Roulette ensues.
- In Me and My Dick, popular girl Vanessa decides to sleep with the dorky Joey, who's long harbored a crush on her, in order to make her ex-boyfriend Rick jealous.
- Part of BioWare's trimming of Amy's flanderized desire for Sonic involves this. In Sonic Chronicles, Dexter is an imaginary boyfriend she invented to inspire jealousy in Sonic, but deep down she still cares about the Blue Blur - if Sonic is nice to her throughout the game, she tells all before the Nocturne invasion. If you're paying a fair amount of attention (and selecting the right conversation options), you can see this coming from fairly early on.
- In Star Fox Command this is the main reason why Krystal joined with Star Wolf and began a relationship with Panther, after Fox kicked her off Star Fox (out of concern for her safety). Judging from his reactions to her in the story... it worked.
- In Planescape: Torment, you can meet an attractive young woman who's upset with the lack of drama in her relationship with her boyfriend, so she wants the Nameless One to pretend to be a jealous suitor and challenge her boyfriend to a fight. Said boyfriend takes one look at the Nameless One (who's six feet tall and so heavily scarred that his normal skin tone is impossible to see) and says he is not willing to fight him. The Nameless One can then reveal that he was only hired to try and stir up drama and suggest that the boyfriend try turning the tables on his fiance and give her a taste of her own medicine, thus providing the girl with the drama she thought she wanted.
- Amnesia: Memories: In Diamond World, the heroine wanted to get noticed romantically by her childhoodfriend Toma because she's been crushing on him for years. She talks with Ikki about how to achieve this, and he suggests that she not contact Toma for a few months, with the intent that not seeing her for a while will result in him seeing her in a completely different light when they meet up again. Unfortunately, Toma misunderstood the entire thing and thought she had started dating Ikki, she was getting harassed by his fangirls, and his own feelings that he thought would never be requited led to his yandere side being triggered.
- Higurashi: When They Cry: Shion openly and shamelessly flirts with Keiichi in front of Mion, to try and goad the latter into admitting her feelings for Keiichi (to the boy himself). In some arcs, however, it's implied she uses this tactic to hurt Mion's feelings, rather than help her along with admitting them.
- In Yoake Mae Yori Ruriiro Na, this is what the Natsuki Bonus Scenario "Mary's Love" turned to be about: Tatsuya and Natsuki are now in a love relationship, but haven't told it to their classmates yet, due to Natsuki being locked into Cannot Spit It Out mode. So Tatsuya and Midori played along to trigger Natsuki's jealousy to the point she would inadvertantly blurt out her feelings in front of the whole class. It works.
- In this strip from Loserz, Carla thinks this is what's going on.
- In Ménage à 3, Peggy executes one of these schemes on behalf of Sonya, with a degree of skill and judgement that's unusual for both the trope and this comic, under the name Operation "Hey, Jealous Zii." Unfortunately, she's running on flawed prior intelligence, but her plan works incredibly well even so, especially from her point of view. Funnily enough, she mostly just wants to improve Sonya's love life enough that Sonya stops having loud soap-operatic dreams, because they're currently platonically sharing a bed, and Sonya is keeping Peggy awake. Switching Sonya's bass guitar for a snow shovel, pulling off a Naked Apron show, and baking high-quality cupcakes, are all far less zany elements of the scheme than they sound. The story starts here; note that some of the strips are somewhat NSFW. Phase 1 culminates here.
- James and Cassiel use this tactic to try and break up their exes, Ash and Rumisel and reclaim them. Thanks to the main plot of the comic (Ash is a boy who was Gender Bender'd by cosmic screw-up and Rumisel's just pretending to date "her" to keep other guys away), it was never likely to succeed.
- For extra fun, Ash did want to break the pair up, but only because Cassiel is quite literally a devilnote and Ash is concerned about James' well-being. But then Eponine, a mutual friend, convinced Ash to let it be because it seemed to be making Cassiel happy. Of course, she's not happy about Ash's indifference:
"BE ANGRY AT ME, DAMMIT!"
- In Sandra on the Rocks, Sandra tries to use Aaina as her fake lesbian lover as a way to regain Cammis interest after Cammi has taken up with Ingrid. This is rather petty of her, as she can only act on her lesbian attraction to Cammi when she's drunk, and she has a boyfriend to whom she's supposedly faithful, while Aaina has a genuine crush on Sandra and is likely to end up hurt by this.
- Deeply subverted in Shortpacked! by Ken's attempt to get Malaya jealous at him by asking out the drop-dead gorgeous Conquest. Not only does Malaya have no positive feelings for her Dogged Nice Guy, but Conquest accepts and intends to take the date all the way. In the end, Ken starts looking at other girls, and while she doesn't develop feelings for him, Malaya does get a little bummed at the lack of ego-reinforcing attention.
- In Sticky Dilly Buns, Angel attempts to provoke Jerzy to jealousy here. Jerzy demonstrates how an Only Sane Man counters the move. Incidentally, this takes place during a crossover with Ménage à 3, during which the Operation Jealousy plotline from that comic (see above) is also still running; so the trope is active twice, simultaneously, in the same club.
- In Treading Ground, Wrong Genre Savvy Rose attempts this sort of thing before her friend can explain why it was a mistake. It sinks her wrecked relationship even deeper.
- In Insecticomics, Thrust tries to talk Dreadmoon into dating someone else to make Starscream jealous. When Thrust suggests he be the Convenient Clancey, it becomes rather obvious that the Zany Scheme is at least half a plot to hook up with Dreadmoon himself.
- Resident Evil Abridged: Chris shifts between pretending not to notice Wesker's obvious man-crush on him, or simply ignoring it altogether. So, as a last resort, Wesker tries to make Chris jealous by revealing the Tyrant to be his girlfriend. Chris finds it funny, but still doesn't care.
- It was done in Sailor Moon Abridged:
Serena: Hey, Melvin. If I go on a date with you, Darian will get jealous well, maybe not "jealous"
- A pair of Golden Lion tamarins (a very endangered species of primate from South America) at a zoo had ceased mating. The Zookeepers felt it was because the male of the pair had ceased making mating calls to the female. The zookeepers rigged a stereo near their enclosure to play pre-recorded mating calls of other male tamarins. The male of the pair, upon hearing other males, started making mating calls himself to warn them off and the two tamarins started mating again.
- This twitter thread (saved here explains how a fictional character helped start a romance and then showed up at the couple's wedding.