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We Used to Be Friends

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"You were my brother, Anakin! I LOVED YOU!"

Captain America: I'm sorry, Tony. But he's my friend.
Iron Man: So was I.
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Our True Companions, Badass Crew, Five-Man Band - whatever - are pretty close. They share a tight relationship, trust and protect each other, would die for each other, if it might be necessary.

Only, what's this? One or several members of The Team make(s) a mistake or the wrong call. Or they just become evil for some reason.

The reasons might vary, but bottom line is, the once tight bond between the character(s) in question and their former friend(s) is severely damaged, if not completely broken. Instead of love and sympathy, at least one of them feels aversion, distrust, and/or disdain for the other(s), if not outright hatred depending on the severity of what the character has done. Whether they start actively fighting each other or simply share a broken bond and avoid each other will vary, but since things sometimes don't work out the way they are supposed to, they can't reconcile by the end of the episode.

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In contrast to a member being Put on a Bus (which doesn't necessarily mean these two tropes can't coincide), this trope focuses on the extraction of a character from their usual environment, due to aversion, distrust or a misunderstanding. However, the character is being kept as a part of the story, which is what differs this from simply being Put on a Bus - the extracted character is not being dropped by the writers. This situation might eventually be resolved by things slowly getting back to normal or it doesn't.

Might trigger a Beard of Sorrow, 10-Minute Retirement, Face–Heel Turn, Heel–Face Turn, a degree in badassery or a Despair Event Horizon. The list goes on and on. Can be revealed via Former Friends Photo.

Contrast with Heel–Face Turn. Compare with Achilles in His Tent, Deus Exit Machina, My Greatest Failure, Grey and Gray Morality and Jumping Off the Slippery Slope, Evil Former Friend. See also Cain and Abel, when the former friends in question were either siblings, or were childhood friends who grew up with each other prior to their falling out. For the inversion, see also Fire-Forged Friends: enemies-turned-allies.

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The song by the Dandy Warhols is the Trope Namer, it being the theme from Veronica Mars kinda figures.


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    Comic Books 
  • In the New 52, Aquaman and his brother Orm (Ocean Master), are portrayed as having been very close as teenagers, and when Arthur left the throne, Orm begrudgingly took his place. The relationship deteriorated when Orm attacked the surface world, forcing the Justice League into action, thus forcing Arthur to pick a side (he was talking both sides down). Afterwards, once Orm is imprisoned, they still don't particularly hate each other, but it's just the way it has to be.
  • Depending on the mythos of that universe — and Depending on the Writer — Charles Xavier and Erik Lensherr (Professor X and Magneto, respectively) started out as best friends and bosom buddies, until they broke off because of differing opinions (Charles with the opinion that mutants and humanity are not enemies and Erik believing they are with mutants poised to become the dominant force).
    • In at least one universe, the 'bosom buddies' business caused (or at least helped) both of their respective marriages to break up. This has not helped the people who protest the Ho Yay between the two at all.
    • The Juggernaut and Black Tom Cassidy, thanks to Juggy's Heel–Face Turn.
    • Colossus and Magik. Especially after he sacrificed everything (including his humanity and the love of Kitty Pryde) to save her from evil by taking on the power of Juggernaut only to find that she encouraged him to become the Juggernaut because he still loved her and she wanted to show him what it was like being damned so he could understand her. At the end of Avengers vs. X-Men, Peter told Illana, "If I ever see you again, I will kill you." They have since made amends and are back to being a family.
    • Wolverine and Sabretooth, for apparently over a hundred years. But then Wolvie got Creed's girlfriend killed, taking away his happy ending, and Creed swore to dedicate his life to making sure Logan would never get one of his own.
  • Spider-Man: Peter Parker and Harry Osborn. Their rivalry took place in the aftermath of the death of the original Green Goblin, Harry's father, and led to Harry going crazy and becoming the second Green Goblin. That a boobytrap set for Peter almost killed Harry's ex-girlfriend Mary Jane probably was seen by him as a positive side-effect.
  • Deadpool is going through this with Emily Preston currently. When she was killed on a mission, her consciousness was stored within Deadpool until she could get a new body, which is where their bond really started to form. Deadpool became very attached to her, and sub-consciously didn't want her to leave. After she goes into her robot body, she awakens to see that Deadpool has left. She's told he ran off, and they theorize he did such because he was upset about losing her after everything else he'd been through, and embarrassed that he could have hurt her. Throughout vol 3, they were very close, with Preston adopting Wade's daughter, Ellie. Once vol 4 started, things became more strained with them. As time wore on, Deadpool finds himself on the wrong side of a war in Secret Empire. He ends up killing SHIELD agent, Phil Coulson -on order from Captain America, who's been cosmic-cubed into a Hydra agent. The recent chapter shows a flashback where Preston and Deadpool are heading to Coulson's safe-house to find him. Preston, unaware of what happened, asks Wade why he needed to see Coulson the other night. Wade lies about the reason, and continues to lie and play dumb so that Preston doesn't know what he did. But, she founds out and punches Wade, telling him that Ellie also loved Coulson. Preston gives Wade a brutal beating and says she thought up a way to kill him due to him not being trustworthy, given his weak-mind -which she felt someone may control at some point. Deadpool blows them both up with a grenade and destroys Preston's LMD body. Before being destroyed, she tells Wade he will burn in Hell. Wade sadly agrees and rips out her power core. He stares down at her body sadly before boxing up the parts and shipping her somewhere. Preston admits to hating Wade in 2099, but also reveals that she forgave him because hatred destroys a person. So their friendship is restored sometime in the future, but it's broken at this point.
  • Superman:
    • In the Silver and Bronze Ages, Superman and Lex Luthor were friends when they were young. Then a lab accident occurred, which Superboy saved Lex from. Lex blamed Superboy, and the rest is history.
    • In Superman vs. the Amazing Spider-Man, Superman brings their old friendship up when he confronts Lex.
      Superman: We were friends once, Luthor... long ago. For a time, I hoped we could be friends again – Maybe we will be, someday – but in the meantime, we are enemies, because you chose lawlessness, and I chose law!
    • In War World, Martian Manhunter warned Superman that if he took another step closer to a crypt J'onn was tasked with guarding it might mean the end of their friendship. Superman didn’t listen and J'onn attacked him. Later Clark endeavored to retrieve an artifact stolen from that crypt in hopes of being forgiven by J'onn. His fellow Leaguer eventually did so.
      Martian Manhunter: I gave you fair warning, Superman — a good deal more warning than I would have given anyone else! I did so because you were my friend — but the bonds of friendship can only be stretched so far before they break!
  • Supergirl:
    • In the post-Crisis storyline New Krypton Supergirl broke up with her childhood friend Thara Ak-Var when she believed she aided and abetted her murderer's father. Later on, they reconciled after a fashion, but their friendship was still strained.
    • In the New 52 universe, Supergirl befriended Siobhan "Silver Banshee" Smythe shortly after arriving in Earth. However she broke it off when she thought Siobhan was using her. When they meet again during the events of Red Daughter of Krypton, they fought. Siobhan blamed herself for their friendship's end, but after a while Kara blamed herself for ruining it.
    • Elseworld's Finest: Supergirl & Batgirl gives two instances:
      • Supergirl regarded Luthor as a kind of father figure... until she learned that he murdered her baby cousin.
      • Likewise, Luthor and Hamilton's friendship broke off because Hamilton felt guilty for helping Luthor murder a baby and wanted to expose him.
    • Zigzagged in Supergirl: Cosmic Adventures in the 8th Grade. Linda and Lena are friends. When Lena finds out that Linda is Supergirl, she breaks their friendship off and tries to kill Linda. Then she loses her memories and they are friends again. Then she gets them back and goes back to want to kill Linda. At the end, she lets her hatred go. On Linda's side, though, she never stops from considering Lena her friend.
      Supergirl: Lena... I'm still me! I'm your best friend!
      Lena: Not anymore... Not now that I know the truth! You're my enemy now. I have no choice but to destroy you!
  • From Batman:
    • Bruce and Harvey Dent/Two-Face embody the trope perfectly, although Harvey was mainly a friend of Batman and not Bruce. Dent was one of the first people of authority to support Batman, but after an incident which caused his transformation into Two-Face, the two become enemies. Notably, Batman is lighter in his dealings with Dent compared to his other villains.
    • Bats and Thomas Elliot/Hush have this going as well. The two were childhood friends, but Tommy's mother would constantly tell him to be more like Bruce, which annoyed him. Eventually, Tommy tried to murder his own parents (his father was abusive) and gain their fortune, but Bruce's dad saved Tommy's mom, which he never quite got over. When Bruce's parents later died, Bruce went around travelling the world and living the life Tommy wanted to live, while Tommy was stuck at home caring for his now frail mother. After his mother tries to cut Tommy off from the fortune, Tommy kills her. He leaves for med school and to travel the world soon after, and when the Riddler eventually tells Tommy that Batman is Bruce Wayne, he tries to ruin his life on a consistent basis.
  • In All Fall Down, the Pantheon tries to reason with Pronto this way. They don't quite succeed.
  • Steve Rogers and Tony Stark in Civil War, which was basically portrayed as a particularly volatile break-up/divorce. With Steve coming back from the dead, their relationship has since improved, not a little because fighting each other tore them both up pretty badly in the first place.
    • And again during Jonathan Hickman's Avengers, when Steve realises Tony reformed the Illuminati, and then wiped his memory about it. The last portion of the run involves Steve relentlessly pursuing Tony over everything else, including the imminent end of all existence.
  • John Walker, a former Captain America and current USAgent, was once a member of the Bold Urban Commandos alongside Battle Star, Left-Winger and Right-Winger. When the US Government decided to only take John and Battle Star, Left and Right were so furious at this that they opted to reveal John's identity, leading to John's parents getting murdered at the hands of the Politically Incorrect Villain group the Watchdogs. The end result leads to John pummeling the two to a pulp and leaving them to die in a burning oil refinery.
  • Watchmen Rorschach and Nite Owl II/Dan who were crime fighting buddies before the novel, now share a tense relationship. Rorschach even somewhat disdains Dan's lifestyle, but as the story progresses they partly rebond and face the Big Bad together.
  • The eponymous character of The Mighty Thor and his adopted brother, Loki, of the Cain and Abel variety.
  • Subverted in Green Lantern Wrath of the First Lantern with Sinestro and Hal Jordan. Hal asks Sinestro if they were ever truly friends. Sinestro responds with, "That's the tragedy of all this. We'll always be friends."
  • Afterlife with Archie presents Veronica's and Betty's relationship as this. Veronica and Betty were friends in middle school until Archie came to town. After that Veronica's Alpha Bitch personality became directed at Betty. They usually hate each other.
  • Injustice: Gods Among Us shows that Batman and Superman used to be very close, enough so that Superman asked Batman to be his unborn son's godfather. Unfortunately, when the Joker finally broke him, Superman's increasingly-rapid fall down the slippery slope eventually culminated in Superman breaking Batman's back, ending the World's Finest once and for all.
  • The Flash III (Wally West) and Reverse-Flash II/Zoom (Hunter Zolomon) used to be friends. Hunter was a police profiler who met Wally when he'd already been the Flash for a few years, and Hunter had a bad knee. Hunter's knee was shot by a B-list Joker knock-off early in his career due to a bad call he made, which caused the death of his father-in-law, Hunter's divorce from his wife Ashley, and his firing from the FBI. Hunter liked Wally because he had a public identity and was an open-book, while Wally liked Hunter because Hunter reminded him of his dead mentor Barry Allen (The Flash II). Eventually, Hunter's spine was be damaged by Gorilla Grodd, which Wally blamed himself for. Hunter lost his ability to walk, and asked Wally to use the Cosmic Treadmill to go back in time and stop him from making his bad call. Wally refused, citing examples like Professor Zoom (Reverse-Flash I) as to why time travel is dangerous and unpredictable. Hunter says Wally refused because he has never experienced personal tragedy, and later tries to use the treadmill himself which ended up giving him time-based powers which effectively gave him superspeed (though he can't time-travel). With his new powers, Hunter decides that in order to make Wally a better hero, he must give Wally not only a great villain to face (which is why he took up the Reverse-Flash moniker), but also as much tragedy as possible. Hunter never outright tries to kill Wally, since this would defeat the purpose of why he does what he does, and Wally still feels responsible for Hunter's fall from grace.
  • Druid City: Jack and Hunter. In the backstory, Hunter and Jack were colleagues, roommates, and fast friends. After Hunter betrayed Jack's trust to get the jump on submitting a groundbreaking article, all of that changed. In the present storyline, Jack is presented as a rather justified antagonist. The two characters are still willing to talk things out over the course of the series, but the point of each interaction is ultimately one-upmanship.
  • In the Fiendship is Magic tie-in comics based on My Little Pony Friendship Is Magic, Sombra punishes his only childhood friend for what he saw as betrayal by making her home town vanish while she was away.
  • Adam Brashear, the Blue Marvel, and Connor Sims, the Anti-Man, were once war buddies who wound up assigned to the same super-science project, which ended up going wrong and giving them superpowers. However, Connor's powers ended up driving him insane, which eventually resulted in the death of Adam's wife Candace. When they meet again, the normally good-natured Adam is furious at seeing him, even though Connor can't remember what happened.
  • In Swordquest Realworld, Peter and Alvin were best friends growing up, and almost became more than friends, but it was the 1980's and Alvin chose to become an Armored Closet Gay instead. Peter never forgave him for this, especially not after Alvin ended up publicly coming out of the closet years later in a cynical attempt to avoid getting kicked off of a reality TV show.

    Fan Works 
  • It's common in My Little Pony: Friendship Is Magic fanfiction to show that Celestia and Luna used to be friends with Discord before he turned into an Evil Overlord and they had to use the Elements of Harmony on him.
  • The entire point of the the sadly discontinued Nanoha Dark Fic 'Betrayers', which divides the cast into a bloody civil war. Spoken practically word for word by Fate.
  • In the Jackie Chan Adventures fic Queen of All Oni, after Jade turns evil once again, her family and friends still care deeply about her, to the point that they are willing to FIGHT her so that they can return them to normal, even though her feelings towards them have been twisted by Daolon Wong's faulty spell, especially towards Tohru, since he became Uncle's apprentice instead of her.
  • In the Katawa Shoujo fanfic Reconciliation, Hanako has this with Lilly and Hisao. The fic takes place after her bad ending, in which she snapped over being pitied by Hisao and angrily said she hated him and Lilly, then isolated herself from them out of guilt. This leads to an awkward moment when Hanako introduces her publicist and friend Sho to Lilly, who is unable to describe Hanako as anything more than someone she knew in high school, despite never having been angry with her for how she acted. By the end, the two have renewed their friendship and Lilly visits Hanako in Japan to catch up.
  • Obviously crops up in Inner Demons, as the entire plot is driven by Twilight Sparkle succumbing to her Enemy Within and becoming the new Big Bad her friends have to fight.
    • Also an element in Apple Bloom's subplot. Her friendship with the other Cutie Mark Crusaders (primarily Scootaloo) falls apart after an argument in which she makes it clear she wants to take her search for her Cutie Mark more seriously. Later on, Scootaloo and Sweetie Belle are talked into Face Heel Turns, while Apple Bloom stays on the side of the protagonists. Notably, Sweetie Belle clearly still cares about their friendship and wants it back which is why she tries to talk Apple Bloom into switching sides as well.
  • In Weekend at Hisao's, Hisao ends up encountering his friends who, in the prologue to the game, stopped visiting after a few weeks, and hears that they have a get-together planned with his former crush Iwanako. It takes some coaxing from Shizune and Misha before Hisao decides to attend, but the meeting goes fairly well and his old friends end up getting invited to his wedding a few years later.
  • From chapter 20 of Ace Combat: The Equestrian War:
    Rainbow Dash: Gilda! Tell me, why are you doing this? We used to be friends!
    Gilda: That’s right, Dash! We used to be! But you chose those ponies instead of me!
  • In the Ponies Of Olympus series, Rarity and her rival Ran Biao used to be friends when they were growing up together in Lao Wu's dojo, until Ran Biao grew jealous over Rarity's superior talent, and crossed the line by seducing and stealing Rarity's Love Interest Razorwing. Rarity never forgave her for that, and they've hated each other ever since.
  • In the Axis Powers Hetalia fanfiction Ignorance, My Bliss, the nations get energy boosts by drinking each other's blood, essentially making them all addicts. They discover that no one has fed off of America ever, meaning that his blood will give them a lot of strength, and don't hesitate at all to chase him down and drain him of his blood. Japan even tells America that though they're friends, his blood is just too tempting. And then, it turns out that even Canada turned on America, only pretending to save him so he'd have a chance to get him alone.
  • Known to happen in Deconstruction Fics of the episode "The Mysterious Mare Do Well", including The World Jumper.
  • The relationship between Roll and Maylu in Maylu's Revenge.
  • In Necessary To Win, Ami and Takako follow this trope. They were friends since they joined the Nishizumi School together, until Ami's disagreement with Takako over the latter's harsh methods of discipline as coach of Black Forest drove a wedge between them. Both remain close with their mutual friend, Kikuyo, though.
  • This is a common trope in Worm fanfics, such as Atonement, Intrepid, Queen of the Swarm, A Tale of Transmigration, and Outcry. Emma and Taylor have a shared friendship that ended after Emma ends up being attacked and, seeking to change her world view, leads to Taylor triggering from a bullying campaign gone too far. Even if Emma tries to redeem herself, like in those fanfics listed above, Taylor will not forgive her in several of those stories.
  • Advice and Trust: Misato and Ritsuko were friends, but due to Ritsuko's behavior they're falling apart. In chapter 8, Misato wonders if Ritsuko is still her friend.
  • In Ghosts of Evangelion Misato tries to remember Ritsuko for what she was rather than she became when they broke their friendship off.
    Misato: I compared you to my best friend, not to the monster she became.
  • In Thousand Shinji, Misato and Ritsuko were friends... until the former got wind of the secrets of NERV. Misato's last straw was Ritsuko mocking her family's destruction shortly after murdering Kaji. Misato attacked her, and when Ritsuko tried to kill her in retaliation, Misato stabbed her.
    “I... I... thoughts not mine... Ritsuko my... friend? I... I didn’t want to believe... fed up with her... fed up... had to hit that bitch. Had to hit that bitch! Feel her flesh crumple beneath my fist... yeah, just hit her, just make her shut up. Shut up! Shut up!”
  • Asuka and Rei in Children of an Elder God managed to get along, even though both girls liked the same boy… but after the battle against the Violator where Rei hurt Asuka unwillingly but brutally, their friendship all but came to an end.
  • In Neon Genesis Evangelion: Genocide:
    • Misato and Ritsuko subverted this at the beginning. They broke their friendship off during the Angel War, but they kind of made up afterwards (though emphasis on kind of). Misato also considered that Ritsuko was her only friend left.
      Her work was all that mattered to her. But that didn't invalidate the fact that Ritsuko was the one person Misato could call a friend. Even if she disagreed with her, she could at least be honest. Otherwise, she wouldn't have come.
    • However, when she finds out that that Ritsuko has used Asuka to test the Emerald Tablet, a dangerous sentient computer program, by putting it inside Unit-02, leading to Asuka being driven to the brink of insanity, the new pilot, Keiko, getting seriously injured, and Shinji almost getting killed, Misato decides that she can't forgive Ritsuko this time:
      "I swear she's done some awful things in her life, but I will never forgive her for that."
  • Subverted in The Second Try with Misato and Ritsuko. They almost broke their friendship off, but an unintended side-effect of Shinji and Asuka’s meddling with the timeline was they patched things up after the destruction of the clones of Rei.
  • Once More with Feeling: After finding out the truth about the real goals of NERV and SEELE, Kaji has no choice but treating his old friend Ritsuko like an enemy.
    After all, if Shinji was right, Ritsuko, good ole Rits herself was fully aware of the ultimate goals of the Evangelion project.
    Hell, she was up to her ever so pretty neck in it.
    Meaning he had no choice but to treat her as an enemy. Someone he had known for close to a decade and he thought he knew well... and thought of as a friend.
    It was no easy shift to make in ones thinking, even for him.
  • In Harry Potter and the Grand Trainer Tournament we learn that Jack Kenway and Lance Blackthorn were once best friends very much like James and Sirius were. When Koga of the Elite 4 caused the death of Jack's aunt and uncle Lance wanted to handle it through proper channels... and Jack saw this as Lance looking to cover the deaths up. The two ended up the commanders on the opposite side of the Johto/Kanto War and it has take a decade for the two to slowly begin trying to patch things up.
  • In I Against I, Me Against You, Princess Celestia and the Director of Project Freelancer were good friends twenty years before the story's beginning. Due in no small part to the circumstances surrounding Project Freelancer, it doesn't last.
  • In Team Rocket Roots, Jessie and Cassidy grew up together and were childhood friends. Cassidy, however, found she couldn't deal with Jessie's mood switches and temper, so they've since become rivals at best and enemies at worst.

    Films — Animated 
  • The Fox and the Hound starts off with the two titular characters frolicking and playing as children, but when they become adults and Copper is now a hunting dog, an accident involving the two leads where Copper's mentor, Chief, is nearly killed, Copper ends their friendship and swears revenge. At the climax, Tod rescues Copper from a giant grizzly bear. Copper, amazed Tod saved his life despite everything that happened, returns the favor by stepping between his master's gun and the weak exhausted fox, and Amos eventually relents. In the end, the two reconcile, but are forced to part ways forever.
  • In The Prince of Egypt, Rameses and Moses were raised as brothers. They became enemies when Rameses was Pharaoh and Moses returned from hiding to free the Hebrews from bondage.
    "You who I called brother, how could you have come to hate me so?"
  • In Coco, Hector Rivera and Ernesto de la Cruz were once best friends and musical partners. When Hector got home sick and wanted to return home to his daughter, Ernesto murdered him for his songs and guitar. Ernesto became famous as a result.
  • This is what happens to Anna and Elsa in Frozen. Elsa shuts Anna out of her life and refuses to play with her. Anna is convinced that Elsa doesn't love her anymore. However, Elsa did this because she wanted to protect Anna from herself. This is because Elsa accidentally almost killed Anna with her powers when they were playing, and Anna doesn’t know this because Grand Pabbie altered her memories so that she doesn’t remember Elsa’s powers so he could heal her. During an argument between the two at Elsa's coronation, Elsa loses control of her powers again, forcing her to flee and causing Anna to realize what Elsa had kept hidden all these years. However, Anna refuses to give up on Elsa and continues to love her, believing that they can once again become friends. Anna even goes as far as making a Heroic Sacrifice for Elsa, and saving herself from her Disney Death since this was an Act of True Love. After Elsa realizes that love fixes everything, they reconcile and eventually becomes best friends with Anna.
  • In My Little Pony: Equestria Girls (2013), the Humane Five were friends at one point in the past, but they had drifted apart when Sunset Shimmer sabotaged their friendship. However, Twilight manages to clear up the misunderstanding and get them all back on friendly terms.
  • Kai, the Big Bad of Kung Fu Panda 3, was originally brothers-in-arms with series Big Good Master Oogway. Things fell apart when Kai brought his wounded friend to a village of pandas to heal him with the power of chi. Being too power-hungry for his own good, Kai began stealing chi from others for personal gain, forcing Oogway to seal him away in the Spirit Realm for 500 years. The belief that he was betrayed and refusal to admit he did anything wrong has left Kai quite a bitter fellow indeed.

    Films — Live-Action 
  • Star Wars: Taken to the extreme in Revenge of the Sith, the third film of the prequel trilogy with Anakin Skywalker and Obi-Wan Kenobi. Over the course of the film, the two go from best friends (and to Anakin, a Parental Substitute) to attempting to kill each other.
  • GoldenEye: James Bond and Alec Trevelyan/006 once had this dynamic, but once Alec betrayed England and MI-6, the two became bitter Arch Enemies.
  • 13 Going on 30 deals with this. Jenna abandons Matt when she becomes more popular. They reconcile, though. Has something to do with Time Travel.
  • In Fire Over England, Sir Richard Ingolby, the English Privateer, unknowingly attacks the galleon of his former friend, Don Miguel de Casanz — when they encounter each other in battle, Ingloby tells his son, Michael, "We were friends once." "Enemies now!," shrieks Michael, and attacks.
  • Spy Kids had Gregorio and his estranged brother, Machete. Neither one can remember why they are estranged, so they team up.
  • American History X features this as a result of a Heel–Face Turn, combined with Rape Portrayed as Redemption.
  • X-Men Film Series
    • Bobby Drake and Pyro were friends in X2: X-Men United, but are adversaries in X-Men: The Last Stand.
    • X-Men Origins: Wolverine details the relationship between James Howlett (Wolverine) and Victor Creed (Sabretooth), who are half-brothers. They were Bash Brothers to the very end until Victor's sociopathy went off the deep end and caused James to lose his connection with Victor.
    • The whole premise of X-Men: First Class is to show how Charles Xavier and Erik Lehnsherr became friends and then ended up on opposite sides with different ideals. There's also a subplot about Raven Darkholme's fallout from her relationships with Charles and Hank McCoy. It's a theme in the original trilogy as well, where Professor X and Magneto are Friendly Enemies, and the beginning of X-Men: The Last Stand depicts younger—and closer—versions of them, when they were still working together.
  • Mark Zuckberg and Eduardo Saverin in The Social Network were once good friends but after Mark had Eduardo kicked out of the company, all bets were off.
  • Mission: Impossible III has this between Ethan Hunt and John Musgrave.
  • Marvel Cinematic Universe:
    • In Iron Man 2 Tony is alone after he disappointed all of his friends. He makes up for it in the end.
    • Sif and the Warriors Three start to feel this way about Loki in Thor when he refuses their appeal to de-banish the titular character, in their mind betraying him. Exactly how much he feels this way about them and how much is show is up for debate at this point.
    • In Captain America: The Winter Soldier, Nick Fury and Alexander Pierce were allies in the past. Now, Pierce is with HYDRA and attempted to assassinate Fury. It fails, and he retributes the favor at the end.
      Nick Fury: You know, there was a time I would take a bullet for you.
    • In Captain America: Civil War, Iron Man basically says a variation of this to Cap as they are about to face off.
      Captain America: I'm sorry, Tony. You know I wouldn't do this if I had any other choice. But he's my friend.
      Iron Man: So was I.
  • In Walking Tall (2004), the villain and the hero were childhood friends before taking very different paths in life as adults. The villain reflects on this with a hint of sadness before the final fight.
  • In Raiders of the Lost Ark, Indiana Jones's friendship with his mentor Abner Ravenwood fell apart after he was romantically involved with his daughter Marion.
    Marion Ravenwood: You know he loved you like a son. Took a hell of a lot for you to alienate him.
    Indiana Jones: Not much, just you.
  • In The Hunt for Red October Tupolev describes his relation ship wiht Ramius like this after the latter's defection. In a bit of a twist, Ramius doesn't seem to consider himself particularly close to Tupolev, and is outright disdainful of Tupolev's abilities as a sub captain.
  • In Transformers: The Last Knight this is done by Megatron (of all people) to Optimus.
    Megatron: We were brothers once.
    Optimus: Once.
  • In Ebenezer (1998) Marlowe says the only reason he came to help Scrooge is because at one time they were friends, which he finds hard to believe now.

    Literature 
  • Discussed but downplayed in the Alterien series. Abigail asks Oberon if Ulysses River, a superhuman assassin who just tried to kill his sister, and he were friends. Oberon replies very matter-of-factly they were not friends, only teammates.
  • Played straight in the Astral Dawn series. Caspian Knoll and Ciaran Devlyn were once the best of friends in another life. After their deaths, Caspian went on to be reborn in other lives while Devlyn went straight to Hell. That put a pretty big gap between the fellows who would eventually become deeply at odds over the fate of Celestial City.
  • In Memoirs of a Geisha, the friendship between Sayuri and Pumpkin became strained once two rivals, Hatsumomo and Mameha, adopted each of them. And once Sayuri became more popular than Pumpkin, even having Mother formally adopted her, Pumpkin grew envious.
  • Peter Pettigew in Harry Potter. The other surviving Marauders view him with extreme disgust for siding with Voldemort.
    • As revealed in Deathly Hallows, Severus Snape for Lily Evans, later Lily Potter. He really shouldn't have hung out with the wannabe Death Eaters and pureblood supremacists in Slytherin...
    • The backstory of Hogwarts reveals that founders Godric Gryffindor and Salazar Slytherin were best friends before they had a falling out over the latter's Fantastic Racism toward Muggle-born Wizards. This would lead Slytherin to leave Hogwarts forever.
  • In Warrior Cats, Fireheart and Onewhisker were friends ever since they were both young warriors. When Onewhisker becomes leader of WindClan, he is harrassed for being such a close friend to a cat of another Clan that he breaks off the friendship and views them more as enemies than anything.
  • Trapped on Draconica: Alister with Gothon. They fought in a crusade together.
  • The classic Dutch novel Oeroeg exploits this trope for drama in the relationship of the two main characters, a white Dutch boy of a rich family and a native Indonesian boy of a servant family. They grew up together, separated during high school and when the main character finally returns to Indonesia (during the 1940s uprisings) he is told by his former friend to leave since he has no more business in the country.
  • In The Saga of Darren Shan Darren and his best friend Steve were an inseparable duo but little did they know destiny had other plans for them.
  • The Age of Fire series has RuGaard and NiVom. They were close comrades during their years in the Drakwatch together, but the relationship soured after the political intrigues of the Lavadome saw NiVom exiled and RuGaard made Tyr (a position that should have been NiVom's).
  • In the O. Henry short story After Twenty Years, the main character is waiting for Jimmy Welles, his best friend from his youth, since they had promised to meet again at a certain spot after he struck out on his own twenty years ago. He explains all of this to a lone police officer who is patrolling the area. The main character is a notorious wanted criminal and Jimmy is the policeman. Officer Welles can't bring himself to arrest his old friend personally and calls in another officer to make the collar.
  • In Updraft, Kirit and Nat, her friend from her home tower, eventually come to odds due to one of them challenging the Singers and one of them now being a Singer. Their Trial by Combat ends with Nat apparently dying, but actually surviving. They later reconcile. Another example might be Kirit and Sellis, a fellow Singer trainee, but that friendship is more illusionary based on not ever really understanding where Kirit was coming from.
  • Michael and Tony of Relativity were best friends growing up, but an as-yet-undisclosed incident in college drove them apart.
  • Anne and Neely in Valley of the Dolls are close friends throughout the book, until Neely and Lyon have an affair. Anne forgives Lyon, but her friendship with Neely is shattered.
  • Jess and Bridget at the start of the Jessica Darling series. They grow closer again towards the end of the first book, but they never quite become the best friends they were growing up. Likewise, Jess and Dori in the prequel series, which also shows how Jess and Bridget drifted apart in the first place. Since a running theme of the books is that people and relationships change over time, this trope is almost a given.
  • In The Unexplored Summon://Blood-Sign, Kyousuke and Mary Ann were lovers three years ago until she killed someone. Since she had promised him she wouldn't, he couldn't trust her after that, and things escalated from there into a massive conflict that defines their lives right up to the present day.
    “Eh heh heh. We’ll be together forever, brother!”
    “Hm? Why even bother mentioning something so obvious???”
  • The two Villain Protagonists of Vicious, Victor and Eli, were once best friends. By the time of the main plot, they're trying to kill each other. About half the novel is told in flashback, showing How We Got Here.
  • Dreadnought! contains two instances involving Piper, the lead character:
    • When Piper tells her friend Merete about her past with Sarda, she describes their relationship as being about as close to friendship as a Vulcan will allow, but her ignorance of Vulcan cultural norms led her to try to help his career, which blew up badly and ruined their relationship and, more importantly, Sarda's life.
    • Piper apparently hits this point with Brian Silayna, her former lover who was part of the plot to steal Star Empire and implicated Piper by giving his co-conspirators her biocode. She speaks and thinks fondly of him up until the point that he reveals himself to her and Enterprise's officers as part of the plot to steal Star Empire, and that it was he that used Piper's biocode to get their attention. When they finally meet back up, she is genuinely angry with him and gives him the cold shoulder when he tries to patch things up.
  • Dori Hillestad Butler's The Truth About Truman School combines this trope with Former Friend of Alpha Bitch. Cool Losers Zebby and Amr begin an anonymous online newspaper about their school to which anyone may contribute, and someone calling himself "milkandhoney" begins using the site to bully Lilly, a popular classmate, including spreading a rumor that she is a lesbian. Lilly goes from popular girl to outcast literally overnight, with her former friends, Alpha Bitch Hayley and her Beta Bitch posse, initiating much of the torment. The twist is that Lilly, once an awkward Fat Girl, was also once close friends with Zebby and Amr but cut them off after she lost weight and was accepted into the popular clique, and thus has reason to suspect Zebby and Amr of being "milkandhoney." They aren't; the culprit turns out to be another outcast named Trevor, to whom Lilly once made a cruel comment about his dead mother.

    Live-Action TV 
  • 24:
    • This serves as one of the plots between Jack Bauer and Tony Almeida in the seventh season. Although the two originally started off on bad terms, Tony eventually became one of the very few people Jack personally trusted with his life. By season seven, a broken Tony has discovered the true identity to the conspiracy that led to the death of his family and his ties to the government, leading him to resort to terrorism in order to get the guy. Jack rightfully sees Tony as a traitor to his country betraying the memory of his loved ones, and Tony in turn sees Jack as nothing but a sellout and a hypocrite by continuing to work with the same government they've both lost faith in.
    • During the early seasons, Senator-turned-President David Palmer had his Chief of Staff, Mike Novick, whom he put all his trust into. However, that ends when Mike betrays Palmer to help the rest of the U.S. government invoke the 25th amendment and displace Palmer, feeling his inaction against a potential (and false) threat could lead to disaster. Mike quickly ends up regretting his actions and and helps out against the real mastermind, but it's too little, too late: Palmer angry and hurt at his betrayal, bitterly fires Novick after everything is wrapped up. On a bittersweet note, the two do manage to make amends late into the fourth season before Palmer is killed at the beginning of Season Five.
  • Agents of S.H.I.E.L.D.:
    • The Reveal that Ward had been Evil All Along came around two-thirds of the way through Season 1. Instead of killing him off in the finale as was originally planned, the writers were impressed enough with Brett Dalton's performance that they decided to keep the character in the main cast. They do this by having the rest of Team Coulson keep him prisoner on their new base, using him as an informant against HYDRA.
    • Due to the HYDRA uprising in Season 1, this becomes the case for a lot of regular characters within S.H.I.E.L.D., most notably John Garrett and Jasper Sitwell. Unlike Ward, however, they're all dispensed with by the finale.
  • Angel:
    • Wesley Wyndam-Pryce. After Wesley translated a prophecy that predicted for Angel to kill his son, Wesley took the child to save his friend from his horrible fate. When he was about to leave town with the boy, he got his throat slit by The Dragon of Angel's nemesis and the baby was now taken from him and brought to a Hell dimension. His friends didn't take it that well. As a result to this, his friends never wanting to see him again, as well as the revelation that the prophecy he was trying to prevent was in fact fake and that he sacrificed everything for nothing, he takes a major in Badassery and is from then on very reserved concerning his former friends.
      Gunn: What happened to you, man?
      Wesley: I had my throat cut and all my friends abandoned me.

      Wesley: I have no idea where Angel is, Lilah, or what happened to him. And I really couldn't care.
      Lilah: Wow. That was cold. I think we're finally making progress. Come on. Doesn't it bother you just a little bit? The not knowing?
      Wesley: That part of my life is dead. Doesn't concern me now.
      • Subverted: He was looking for Angel the whole time.
      • Double Subverted: After he finds him, he still stays the hell away.
    • Wesley steadily reconciles with them during the fourth and fifth seasons, however - despite the pain of what happened, Angel later states that overcoming this trope made their friendship afterward stronger than ever.
    • Also happens in the second season, when Angel fires Wesley, Gunn and Cordelia from Angel Investigations.
  • Arrow: Oliver and Slade. They became close friends and allies when trapped on the island, but between exposure to Mirakuru and Shado's death, Slade came to hate Oliver.
    • Oliver's friendship with Anatoli also eventually breaks down, after Oliver calls in one too many favors from the Bratva, and then refuses to back one of their plays. As a result, Anatoli, tired of what he sees as an All Give And No Take relationship, becomes an enemy and is eventually revealed to be part of the Big Bad Ensemble of Season 6.
  • Babylon 5:
    • General Hague is killed in battle after organizing a mutiny against President Clark's authoritarian regime. It's mentioned that the attacking ship was captained by a close friend of Hague's who had known him at the academy but nonetheless had remained loyal to Clark. The other officer is presumably killed when Hague's ship destroys it soon after. Major Ryan warns that this will be the case for most of their enemies in battle now.
    • In the fourth season Michael Garibaldi and Sheridan have a falling out, evidently caused by Garibaldi's collapse after being captured by the Shadows. It is later revealed that he has been brainwashed by Alfred Bester, who uses the unwitting Garibaldi as a lever to alienate Lyta so they'll be forced to make a deal with Bester, trick Sheridan into walking into a trap so he can be arrested by President Clark's men, and discover the plot by William Edgars to infect Telepaths with an engineered plague. Of course, once Garibaldi has been released from the conditioning, none of his friends will have anything to do with him, and the only way for him to regain their trust is to bust Sheridan out of prison. It's easy to see why Bester is considered to be the Magnificent Bastard of the show.
  • Battlestar Galactica (2003):
    • Apollo and Starbuck are a looping On-Off-Couple/Friends. When the fleet reaches New Caprica however and Apollo and Starbuck sleep together they seem to share a now very distant relationship. We only learn later on why.
    • Happens to the Old Man and Col. Tigh. Twice actually. The first time when the exodus from New Caprica succeeds and Saul can't really deal with what happened, the second time when the XO reveals to Admiral Adama that he has been a Cylon all the time. They manage to reconcile eventually.
  • Black Adder fans have a popular Head Canon theory that Captain Blackadder and Captain Darling were good friends before the war started, but they fell out after Darling got out of being in the trenches to be General Melchett's PA.
  • Bones:
    • Zach turned out to be working for a Serial Killer. This puts a damper on his relationship with the other characters. He is promptly written out.
    • This really becomes a Subverted Trope because scenes showing him in a mental institution afterwards show that after the initial shock, his friends are actually very supportive, visiting him and trying to help him recover. They know that he's still their friend, he was just indoctrinated by what passes for an Evil Mastermind into doing his bidding because, despite his high intelligence, he is ridiculously naive and was taken advantage of. Everyone is more... baffled than feeling betrayed.
  • Buffy the Vampire Slayer:
    • Buffy left her friends after she had to kill Angelus/Angel seconds after his soul was restored. She took off to Los Angeles, leaving her friends behind. Her return to Sunnydale is awkward - at best.
    • The entire point of Faith becoming The Dragon to the Mayor.
    • Cordelia also fits since 'Lovers Walk'. Though she doesn't fully repair her vitriolic friendship with the Scoobies completely, however, they manage a reconciliation by the end of the third season, and all interactions between them from then on are on generally good terms.
    • Rupert Giles and Ethan Rayne. In their youth, they were part of a group of mystics who summoned demons for kicks. Giles has since moved on, while Ethan remains a worshipper of chaos and professional villain.
    • Willow when she turned evil for a part of the series.
  • Dear White People: Episode four reveals that Sam and Coco were once friends, since initially rooming together, but had a falling out after racial issues came between them. Later they reconcile somewhat.
  • The Defenders:
    • Jessica Jones:
      • In the season 1 finale, Jeri Hogarth is implied to be a friend with district attorney Samantha Reyes, or at least, on good enough terms to address her by her first name. However, midway through season 2 of Daredevil, Foggy has a conversation with Marci Stahl, who has joined Jeri's firm since Wilson Fisk's arrest, and she mentions that Jeri and the partners are worried about Frank Castle's trial because if Reyes convicts him, she sets precedence for vigilantes like Daredevil and Jessica to persecuted as well. Marci implies that Jeri may have also had a falling out with Reyes as a result of the latter's attempts to persecute Jessica.
      • Jessica and Malcolm have a falling out in season 2 after a season of Malcolm getting shit upon and him not feeling like he's getting the respect he deserves.
      • Jessica also has a falling out with Trish in Season 2 as the latter relapses into drug problems and develops a reckless hero complex. In the final episode of the season, Trish kills Jessica's mother basically unprovoked despite claiming it was Jess's defense, resulting in Jessica disowning Trish as her sister.
    • Daredevil: Elektra was Matt's college flame, and later his crimefighting partner for a bit in season 2. But then she is killed in the season 2 finale of Daredevil, and when she's resurrected by the Hand, she's also now working for them, and even fighting against Matt, who she doesn't recognize. And even once she gets her memories back, she decides to still carry out the Hand's agenda.
    • Iron Fist: Danny and Davos have a falling out at the end of Season 1, when Davos's jealousy over Danny becoming the Iron Fist finally boils over, and Knight Templar views grow far too extreme for Danny. Davos is Danny's main enemy for Season 2, and kidnaps him, bleeds him, and steals the power of the Iron Fist from him.
  • Doctor Who:
    • The Doctor and the Master were at school together back on Gallifrey, and are still on Friendly Enemy terms most of the time. The Third Doctor called the Master his best enemy and openly looked forward to their meetings. The Tenth Doctor's finale featured reminiscences of their shared childhood. Apparently the Master was a rich boy: his father had estates where they would play together. The Doctor also gifted his daughter with a brooch when she got married.
      • According to Expanded Universe sources, back in his student days the Doctor was part of a clique made up of fellow nonconformists, which included the future Master, Rani, War Chief and Monk.
    • "Demons of the Punjab": Umbreen and Manish's families had been neighbours in the same valley for generations, and during the war, Manish would often go hungry so both families could eat. All that changed when Manish became radicalized against Muslims.
  • Friends: Briefly lampshaded in the fifth season, when Ross tries to work things out with Emily by agreeing to never see Rachel again. Rachel convinces Phoebe to set up a new 'group' with her. It didn't happen.
  • Game of Thrones:
    • Robb executing Lord Rickard greatly fractures House Karstark's ties with House Stark. Catelyn freeing the murderer of Lord Rickard's children probably did not help.
    • Jon allowing the Wildlings to go South of the Wall pisses off House Umber's new Lord so much that he allied with the Boltons despite hating them.
    • The History and Lore videos indicate that Tywin and King Aerys were tight as nails until the latter's madness and jealousy kicks in.
    • Oberyn told Cersei that he last saw Myrcella playing with his daughters at the Water Gardens. It isn't clear if he means his younger daughters or the Sand Snakes of Season 5, but either case they aren't friends after Oberyn's death. This is a major change from the books where absolutely none of his daughters and no one in Dorne, aside from a nutcase knight, wanted to hurt Myrcella.
  • Gossip Girl: Serena and Blair at the very beginning of the series.
    • Pretty much happens all the time due to the fact of bonding and scheming. But especially Dan falls in this category when publishing his books / exposès.
  • How I Met Your Mother: Ted and Barney for some time at the end of the third season.
  • Lizzie McGuire: Lizzie and Kate Sanders, until Kate's figure filled out and she became a popular cheerleader. They seemed to settle their differences permanently in The Movie.
  • Lost: Michael is another good example. During Season 1, he seems to be a nice and well-liked member of the Losties. When his son Walt is kidnapped in the Season 1 finale, he knocks out Locke and Jack in order to get a head-start going after the Others. When he returns eventually, he decides to betray his friends and lure them into a trap to retrieve Walt.
  • The Myth Arc for season 1 of Madam Secretary is made of this trope. President Conrad Dalton was the Director of the Central Intelligence Agency under George W. Bush, and present-day CIA director Andrew Munsey, as well as Liz McCord, Juliet, Isabelle, and George, were senior operatives and close friends. By season's end, Munsey and Juliet have been revealed as ringleaders of a Renegade Splinter Faction trying to foment regime change in Iran, and Juliet confesses to having killed George and Secretary of State Vincent Marsh to keep the secret. Driven home by the closing scene of "There But for the Grace of God", which shows all six of them enjoying themselves at Liz's retirement party.
  • Malcolm in the Middle: Malcolm was rejected by all of his "normal" friends when he was placed in the gifted program. Even after he makes new friends, it's still a source of bitterness for him.
  • Merlin: Morgana discovers that Arthur is her half-brother in the third series and spends the remainder of that series and all of the next trying to kill him so that she can consolidate her claim on the throne. When they finally come face-to-face at the end of series four, Arthur sadly asks her: "What happened to you, Morgana? I thought we were friends." When Merlin asked her a similar question in series 3, she replied that she hasn't forgiven him for poisoning her. This trope is the only reason Merlin hasn't killed Morgana.
  • Mr. Robot: Elliot and Angela turn against each other for most of the third season due to Whiterose's manipulation. Angela starts taking advantage of Elliot's mental illness and uses Mr. Robot to complete Stage 2.
  • The O.C.:
    • Ryan Atwood at the end of Season 1 and the beginning of Season 2 - oh, and the beginning of Season 4. Leaving the Cohens after Marissa's death, becoming a cage-boxer, driven by revenge and grief along to Placebos 'Running Up That Hill'.
    • Seth claims to not care about Ryan and his family anymore, as they try to persuade him to come back to Newport at the beginning of Season 2. They manage to reconcile quickly.
  • Once Upon a Time: Snow White and the Queen, though due to the age difference it was more a niece and cool aunt relationship. As Snow White grew older and the Queen grew more bitter in her loveless marriage to the King, the two grew to hate each other. Also, the Queen blames Snow White for being tricked by the Queen's mother Cora into spilling the beans that the future queen was in love with Daniel the stable boy, leading Cora to kill Daniel to force her daughter to marry up.
  • Revolution: As revealed in episode 3, captain Jeremy Baker with Miles, during the founding of the Monroe Republic. Not to mention Miles and Monroe, as shown in flashbacks in episode 10.
  • Scrubs: Also happens. Especially to Elliot and JD at the beginning of the fourth season. A milder case of the trope though. Their second attempt at a relationship ended badly and for a while they had a "superficial friendship", being generally friendly but not nearly as close as they once were. They became roommates, which brought them a lot closer.
  • The Shield: With the end of Season 3 and the disbandment of the Strike Team, the relations between its former members are heavily tensed. Especially Shane, who seems to have crossed the line, thinks very differently about his former best friends:
    Army: Jesus Christ. Lem's one crazy-ass white boy. You really used to be tight?
    Shane: Yeah. A lifetime ago.
  • Smallville: Clark Kent and Lex Luthor, who go from close friends to Arch Enemies over the course of the show, while the breakup of their friendship is an obvious Foregone Conclusion throughout the earlier seasons.
  • Supernatural:
    • The angel Balthazaar, a former friend of recurring character (and fellow angel) Castiel. At some point during the Apocalypse, Balthazaar went rogue and has started making deals with humans for their souls. When Castiel discovered this, and Balthazaar tried to get him to do the same, he stated how disgusted it made him, and declared the two of them enemies.
    • Gabriel and Lucifer. They used to be very close, as Lucifer claims that he taught his little brother everything he knows. Lucifer then kills Gabriel because Gabriel sided with humans.
    • Near the latter end of Season Six, Sam and Dean discover that Castiel is working with Crowley to gain control of Purgatory and all its souls. Castiel tries to justify his actions, but the brothers want nothing more to do with him (especially as of the season finale, where he jumped off the slippery slope). In an interesting inversion of the previous example, when Balthazaar discovers what Castiel is up to, he is horrified at what his friend is becoming, and starts spying on him for the Winchesters. This ends up costing him.
    • Castiel is The Atoner in season 8 and starts repairing his friendship with the Winchesters, although this is complicated by his also being a Manchurian Agent for Naomi.
  • Veronica Mars: Used "We Used to Be Friends" by The Dandy Warhols as its Real Song Theme Tune, and it shows: as we learn in the first episode, following the murder of her best friend Lilly, Veronica's boyfriend ignores her (actually, that happened a couple of days prior), her former friends turn against her, and she gets roofied and raped. Thus begins her descent into Film Noir.
  • The Walking Dead: Rick and Shane - former best buds - share a tensed friendship since the outbreak, partly because Shane slept with and is in love with Rick's wife.

    Music 
  • The The Dandy Warhols song "We Used to be Friends" as mentioned above.
  • Both "Believe Me" and "Where'd You Go" by Fort Minor are about this trope.
  • Reliant K's "Which to Bury, Us or the Hatchet?" is ambiguous as to if it's a friendship or romantic relationship that's careening off the cliff, but the singer clearly doesn't like how badly things are breaking down.

    Professional Wrestling 
  • Quite common in professional wrestling, especially the WWE example of Eddie Guerrero and Rey Mysterio Jr. in 2005 comes to mind.
  • The classic examples included Hulk Hogan and his feuds with "Mr. Wonderful" Paul Orndorff, André the Giant and Randy Savage. In both instances, a week after those two wrestlers turned heel on Hogan, Hogan would invariably come on and reflect on the now-broken friendship before accepting their challenge for his World Championship (or in the instance with Savage, demand a title shot against the champion "Macho Man").
  • Also in 2005 were the Ballard Bros and Cheerleader Melissa, who had started off as their valet but ended up on the opposite of the ring with the All Pro Wrestling Rangers against their newer valet Luscious. The Ballards reminded her of their friendship and insisted they had no intention of fighting her, but were lying.
  • CM Punk was besties with Paul Heyman. Yeah, that Paul Heyman. When Paul inevitably betrayed him, Punk was beating himself up for grabbing the Idiot Ball and not seeing it coming, as being his best friend he should've known that Pauly would sell out his own mother if he saw the writing on the wall.
  • While Roman Reigns took Seth Rollins's betrayal of The Shield hard, Dean Ambrose took it even harder. Dean's only goal in life these days seems to be "beat the hell out of Seth Rollins", though it's very clear that beneath all the anger and hatred between them, Dean was genuinely hurt — if this is anything to go by:
    Dean: I loved you Seth! You were my brother!
  • Batista pulled this on Rey Mysterio at the 2009 Bragging Rights after assuming Rey would automatically help him regain the World Heavyweight Championship. Batista would savagely beat up Rey after The Undertaker successfully retained the title.
  • The inevitable betrayal of El Generico/Sami Zayn by Kevin Steen/Owens always leads to a feud like this. Because, at least to Steen/Owens, they are destined to be at war with each other forever.

    Religion 

    Theatre 
  • RENT - Roger, Collins, Maureen and Benny used to be tight when they were roommates, but when Benny moved out, bought their building and married Allison, a rift grew between them when it became clear he no longer thought the same way they did. Maureen hates Benny for "no longer believing in the same things." Mark and Roger hate him both for abandoning them after Roger got sick and for reneging on their deal. They all express themselves childishly. It's a stupid old world all around.
  • Inherit the Wind features a scene where Henry Drummond and Matthew Brady, opposing counsels in the trial over evolution, meet and muse over their past friendship. It's stated that their differing views on religion caused them to party ways.
  • Frank, Charlie and Mary had a tight friendship in Merrily We Roll Along until Frank made it big and the other two interpreted it as selling out.
  • How the eponymous Hamilton feels about Aaron Burr, as demonstrated in "The World Was Wide Enough" as the bullet from Burr's gun is heading towards him in slow motion:
    Hamilton: Burr, my first friend, my enemy - perhaps the last face I'll ever see.

    Web Animation 
  • Red vs. Blue:
    • Agent Washington and the Meta. Season 9 revealed that they were closer to each other than really any other Freelancer.
    • Sarge's in-universe movie trilogy pulls this between the second and third installments. Sarge and Tucker become buddy cops in the second movie, but the third is titled "Sarge vs Tucker: Origin of Sin". According to Wash, Tucker turns out to be an evil clone, leaving the "real" movie Tucker's status unknown.
  • Mystery Skulls Animated: After returning as a vengeful ghost Lewis feels this way about the rest of the Mystery Skulls, especially Arthur who murdered him. It's unknown whether Lewis knows that Arthur was possessed at the time.

    Webcomics 
  • Bittersweet Candy Bowl: Mike and Lucy,the two main characters, are officially this as of Chapter 96. They were actually friends (and crushes) for the first half of the comic, but come Mike's "The Reason You Suck" Speech to Lucy in December, he officially cuts off ties with her. He later comes to regret it when Lucy attempts suicide in Breaking Up and tries to apologize to her (not so much to rebuild their friendship as to show regret for taking it too far) when she comes back from being put on a bus between that chapter and Love Again, only for Lucy to make clear that she no longer wants any ties with Mike.
  • Retroactive example in Homestuck: Vriska actually used to be pretty close to Aradia and, in particular, Terezi, but after she started going too far and becoming Chaotic just for the sake of it, both turned their backs on her, their relationship irretrievably broken. Even later when Terezi remembered their friendship and wished they could return to it she couldn't pretend that Vriska wasn't evil or that she wouldn't work against her if it was necessary. Luckily, this is later subverted after John retcons the timeline so Vriska survives; Vriska does genuinely grow into a better and more selfless person as a result, and she and Terezi become moirails.
    • Gamzee and Karkat were moirails after Karkat pulled him out of his murderous rage. During their isolation on the meteor, Karkat makes a point that he won't reveal where Gamzee is, and Gamzee admits to wanting to keep his relationship with Terezi secret because he fears for their friendship. When they finally get to the Post-Scratch Kid's session, their relationship has fallen apart because Gamzee didn't hold up his end. When they meet up again on LOFAF and Karkat sees him viscously beating Terezi, he makes it clear that Gamzee's gone too far and tries to attack him...only for Gamzee to ruthlessly murder him.
    • Among the pre-Scratch trolls, Meenah (Feferi's dancestor) and Aranea (Vriska's dancestor) were best friends, and continue to be so in the afterlife...until Aranea steals the Ring of Life to bring herself back to life and leaves Meenah and Vriska behind in the afterlife without remorse, in order to enact a rather extreme, rather badly-thought-out plan to defeat Lord English. When this plan inevitably fails and dooms an entire timeline and Aranea is killed again, Meenah doesn't see her again in the afterlife afterwards, and states that she doesn't really want to.
  • In Evil Plan Stanley Kinesis (back in college) and William sever ties after a fight about the telekinetic chip. Possibly subverted, as it was recently revealed that they're still on speaking terms. Why this is has not yet been explained.
  • In Sonic the Comic Sonic and Amy were friends but in the fan-sequel Sonic the Comic – Online!, after the Kane arc, Sonic and Amy have become enemies (although it is implied Amy still trusts Sonic on some level, it's just impossible to be sure about him given the circumstances).
  • In Girl Genius, Gilgamesh and Tarvek became close friends while growing up on Castle Wulfenbach. Their bond is ruined when Tarvek gets sent home for spying, after being told on by Gil- when in fact Gil was his partner in crime, and the secret they were after was the truth of Gil's origins. In the present day, they vie for Agatha's affections. Gil views Tarvek as a "weasel" and an ineffectual dandy; Tarvek, for his part, sees Gil as a libertine cad.
  • Mr. Blank and Mr. Black in Sam & Fuzzy used to be the two best Blankfaces of the Ninja Mafia until Sam (unwittingly) caused its downfall. Blank stayed loyal, Black decided to use his newfound freedom to sell his skills on the open market and tries using his successes to convince Blank to follow his example. He fails. Fatally.
  • Tower of God: Baam and Rachel. In this case, it doesn't end well, and the falling out started before Baam even realized it: The moment he followed her into the Tower. In the end, she drowns him and he barely survives, crushed by the fact that his only family, friend and possible lover now hates him, where the only thing he truly feared was being alone.
  • In Consolers, Nintendo and Sony used to work together on a SNES add-on and were pretty decent friends... until Nintendo finds out Sony rewrote the contract to get most of the profits himself. She ends up cancelling the deal (in front of a huge audience), Sony makes his own console as revenge and they become industry competitors.
  • Part of the premise of Crepuscule is how Lark and Setz were once each other's (only) friend, but after Setz abandoned Lark (for understandable reasons that Lark doesn't learn for a while) and they spent ten years with no contact while Setz Took a Level in Jerkass, things are obviously rather tense between them now, with Setz too withdrawn to explain his actions and Lark no longer caring about him. Thankfully, they patch things up. And then Lark Took a Level in Jerkass to even bigger extremes, with Setz pulling this card this time—and again, at the end of that season, they mend their friendship.
  • Zebra Girl: The bonds between the group are heavily damaged when Sandra turns on them, forcing Jack to banish her to another reality. During her stay in the Subfusc, Sandra is able to regain her morality and feels remorse for her actions, but she doesn't expect them to forgive her for what she did. Years later, when her former friends hear about her return, they are terrified (except Crystal, who still has hope that Sandra will go back to her former self, though she admits herself that she is at her limit).
  • The Legend Of Spyro Zonoyas Revenge: Cynder and Zonoya used to be best friends until Cynder became cursed, scratched Zonoya's eye and drove her away.

    Web Original 
  • In The Gamer's Alliance, Vaetris and Jahi were once prostitutes in the Demon Realm and close friends, but things changed when they were abused too much and Vaetris's ambition to change their living conditions turned her to the path of conquest, bloodshed and manipulation whereas Jahi chose to nurture her young instead, which set the two on different paths. Ronove and Nesa became friends while the former was amnesiac but once Ronove regained his memories of being a demon lord, he took back his position in the demon hierarchy and ultimately betrayed his friends, Nesa included. However, both cases are more complex and grey than that and have shades of Friendly Enemy because neither Vaetris nor Ronove act in a truly villainous way and they do seem to care for their former friends somewhat whenever they're dealing with them although in both cases manipulation is also involved.
  • In Noob, Arthéon mentions that his former guildmates are snubbing ever since he got his high-level avatar banned for Real Money Trade. Saphir was okay speaking to him in Season 1 (but not helping him finish the quest needed to get a sword), while Ystos is still friendly to him. Fantöm was explicitly not aswering his e-mails in Season 1 , but is back to speaking terms with him after Season 3 due to circumstances putting them in the same guild.
  • In the web-serial Ash & Cinders Orym and Thavian were both Wizards, both trained under the same master, and are brothers. For some an-yet unspecified reason, had a falling-out that's led at least two known nearly-lethal encounters.
  • In the web novel Worm, Taylor and Emma's childhood friendship ended after Emma ends up being attacked and, seeking to change her world views, cuts ties with Taylor and starts bullying her.
  • The Nostalgia Critic and Santa Christ. A lot of it is due to Critic fucking up (like accidentally shooting Santa Christ in Kickassia), but there's also Santa Christ taking a level in jerkass.
  • Aaron deals with two brothers who were once good friends, but drifted apart and are now estranged.

    Western Animation 
  • The Back Story of the Storm Hawks had The Dark Ace as friend and co-pilot to the original Storm Hawk's captain. He's the reason why the original Storm Hawks are all dead.
  • In Gargoyles this occurs between Macbeth and Demona, as seen in "City of Stone": best of friends when they first fought together against Duncan and won Macbeth his kingdom, things go south when Demona, mistakenly believing that Macbeth was about to betray her and her clan, betrays him first, causing him to lose his kingdom, family, and identity.
  • Occurs in the second Teenage Mutant Ninja Turtles cartoon between Leonardo and the Shredder's adopted daughter Karai, who in previous seasons had developed a rapport of sorts with him, despite their Feuding Families. When the turtles successfully stop the Shredder's plan to leave Earth to conquer the Utrom homeworld, and end up getting him imprisoned and exiled, Karai takes it as a betrayal, and vows to avenge her father. Later, after Karai destroys the turtles' lair and believes she's killed the other turtles and Splinter, she heads into April O'Neil's shop and asks her to give Leonardo a message. When April asks Karai (whom she's never met before) how she knows the turtle, she responds with the trope name.
  • Plankton and Mr. Krabs of Spongebob Squarepants. They used to be close friends but are now mortal enemies because of the Krabby Patty formula.
  • Avatar: The Last Airbender reveals that Aang's predecessor Avatar Roku used to be best friends (with a lot of Ho Yay) with Firelord Sozin, the man who started the Fire Nation's war for world domination, and committed genocide against the airbenders.
  • My Little Pony: Friendship Is Magic:
    • The Alicorn sisters Princess Celestia and Princess Luna used to jointly rule Equestria together until Luna became bitter and resentful when their subjects favored Celestia over her, turning her into Nightmare Moon. After Luna is defeated and returned to normal centuries later, however, the two sisters reconcile.
    • Rainbow Dash and Gilda in "Griffon the Brush Off". They used to be childhood friends, but their friendship is broken off after Dash finds out that Gilda has been bullying her other friends behind her back. This bitterness carries over into their reunion in "The Lost Treasure of Griffonstone", though Pinkie Pie proves that Gilda has a heart of gold and helps them make up in the end.
    • Discord attempts to invoke this in the two-part season 2 premiere "The Return of Harmony" in order to keep them from using the Elements of Harmony against him, using a combination of mind control and mind tricks to get Twilight's friends to behave opposite of their respective elements. He very nearly succeeds in pushing Twilight over the Despair Event Horizon with her corrupted friends, but Twilight overcomes his mind games with help from her old friendship reports and lifts his spell on her friends to take him down.
    • In "Amending Fences", Twilight is shown to have drifted so far apart from her old friends at Canterlot that she can't even remember their names. As soon as this dawns on her, she immediately sets out to fix things. While most of them are willing and eager to reconnect, her closest friend Moondancer wound up holding a deeply seated grudge because Twilight brushed off her one attempt to be more social and then left without saying goodbye, which caused Moondancer to isolate herself in her books and studies much like Twilight herself used to do. After Moondancer finally vents her pent up frustrations at Twilight, the two patch things up.
  • The King of Galaluna and Modula in Sym-Bionic Titan. Lance's Whole Episode Flashback shows them getting along amicably but most of the show is Modula holding the King hostage. The King is surprised when he discovers Modula was behind his planet's invasion.
  • Jacob and Kane (along with Dr. Hudson, although he's not really a bad guy) in Motorcity. Jacob now fights KaneCo with the Burners and helped design their bots, which gives him some inside knowledge.
  • Daffy Duck gives Bugs Bunny mad ups in "Porky Pigs Feat." When they get paired up over ten years later, Daffy becomes the Iago to Bugs' Othello.
  • In Scooby-Doo! Mystery Incorporated, Scooby was on the outs with Shaggy, who he had discovered was romancing Velma, and with Velma in a jealous snit over Shaggy. Fortunately, fences were mended soon after.
  • The Tiny Toon Adventures episode "Citizen Max" shows Buster and Montana Max used to be the best of friends when they were younger, they shared whatever they had because Max was poor, then his parents won the lottery and Max became a selfish, greedy jerk and cut off his friendship with Buster
  • Codename: Kids Next Door: The second-to-last episode of the show, "Operation: T.R.E.A.T.Y.", shows that Numbuh 1 and the former Numbuh 274, Chad Dickson, used to be quite close. Chad had apparently mentored Nigel back when he was a cadet, and Nigel was close enough to him to call him "old friend". Thus, Chad's betrayal was a cut so deep that the two developed a huge rivalry that lasts the rest of the series. It eventually boiled down to this episode, where a Chained Heat situation strains their already tenuous relationship to the breaking point, and by the end, they're trying to kill each other. Even after it's revealed that Chad was a Fake Defector, his disappearance afterwards and his behavior throughout the episode makes it evident that the bridge is burnt and that there's no salvaging their friendship.
  • Brace Face. Sharon and Arch-Enemy Nina Harper used to be real good friends until the second grade, when someone mysteriously chopped off the heads of Nina's dolls and she blamed it on Sharon.
  • The Steven Universe episode "Maximum Capacity" reveals that Greg and Amethyst used to be good friends who enjoyed watching tapes from an old sitcom together. Their relationship is more strained now due to Amethyst's resentment over Greg monopolizing Rose Quartz's attention when they started their relationship and Greg spending less time with Amethyst as a result (leaving her feeling even more alone). Greg admits he would like them to be friends again, but not if it means he has to put up with her hurtful behavior.
  • BoJack Horseman:
    • In Season 1, BoJack and Herb Kazzaz. The latter never forgave BoJack for not coming to his aid when he was blacklisted from the entertainment industry for being gay.
    • Season 3 ends on a particularly friendless note for BoJack. Todd has had it with BoJack's selfish, self-destructive behavior and gives him a "The Reason You Suck" Speech in the third-to-last episode of the season. BoJack has fired Princess Carolyn as his agent. Things are weird between him and publicist/occasional lover Ana Spanakopita. Add to his former co-star/friend/sometime lover Sarah Lynn overdosing in his arms in the second-to-last episode, and BoJack is in a really bad way as far as friendships go.
  • Gravity Falls: Ford used to be close friends with both Stan and Bill. But external circumstances have him falling out with them:
    • For the latter, Ford was lulled by Bill's flattery, believing that Bill was a muse looking to inspire a brilliant mind. It broke after he realized that the demon only used him to create a portal to enter Gravity Falls and remake the world in his image.
    • Stanford's relationship was torn with his brother when Stan accidentally ruined his chance to go to his dream college. Ford continued to hold resentment for the accident for the next forty years despite Stan working hard to bring him back, and insists that Stan gives his identity and house back, and quit the Mystery Shack business for good, mutually disowning each other as the latter declares the kids to be the "only family" he has left. Luckily, the older twins reconcile after the events of Weirdmageddon after realizing that they were both petty towards each other.
  • In Recess, T.J. and Menlo, of all people used to be friends. However, even though they don't hang out anymore, they made an agreement that T.J. would come to Menlo's birthday party every year.
  • Tangled: The Series has a rather sad example between Rapunzel and Varian. The clumsy Varian started out as a close friend of Rapunzel's and provided a lot of help for her, Eugene, and Cassandra with his inventions. Then came the episode "Queen For a Day", which marked the downward spiral of his and Rapunzel's friendship: Varian inadvertently causes his father to start getting encased in crystal. In a panic, Varian travels to the castle of Corona only to find Rapunzel and the others with too many other problems on their laps (a cataclysmic snowstorm is threatening to tear Corona apart and her parents are missing) to just drop it all and help Varian out. Varian comes back to find his dad completely encased in crystal and, in his anguish, blames Rapunzel for not coming to help him. By the end of the season, Varian has slowly but surely severed almost all ties between not only Rapunzel but the entire kingdom (to the point of kidnapping the Queen), and Rapunzel is clearly hurt by this by the end of "The Alchemist Returns", admitting she "[doesn't] even know what he is anymore". Rapunzel, however, still has hope that the friendship could be salvaged, given that she asks for Varian to be treated with care and given the help he desperately needs following his arrest. Only time will tell if Varian will eventually have that Heel Realization and make up with Rapunzel.
  • Peter Parker and Flash Thompson of all people were best friends in nursery school in The Spectacular Spider-Man. It was even revealed that it was the former who coined the latter's nickname. And no, it wasn't because he could run fast. When this was revealed at the latter's party, everyone present is shocked.

Alternative Title(s): Friend Turned Rival, Friends Turned Rivals

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