History Main / TwoPersonLoveTriangle

* ''WesternAnimation/MiraculousLadybug'': Taking it a step further, we have a Two-Person Love ''Square''. The main character, Marinette, is in love with her classmate, the handsome Adrien Agreste, who considers her an acquaintance ([[PortmanteauCoupleName fans call this pairing]] "Adrienette"). When she transforms into the superheroine Ladybug, she rejects the romantic advances of Cat Noir, her superhero teammate ("Ladynoir"). Of course, behind Cat Noir's mask hides none other than Adrien himself, who has no idea that his beloved Ladybug is actually Marinette in disguise! Meanwhile, Ladybug interacting with Adrien ("Ladrien") shows both of them flustered and blushing, and Marinette interacting with Cat Noir ("Marichat") shows both of them snarky and oblivious.

* In Creator/AbbottAndCostello's version of ''Literature/JackAndTheBeanstalk', this was part of the basis for the romantic subplot. Princess Eloise is supposed to marry Prince Arthur, but they've never met. They both get kidnapped by the giant, call themselves Darlene and Arthur, and [[PerfectlyArrangedMarriage fall in love.]]

* In the ''Series/HenryDanger'' episode [[Recap/HenryDangerS1E17ElevatorKiss "Elevator Kiss"]], Henry saved Bianca from a malfunctioning elevator. While hanging from his safety line in the shaft, Bianca kisses him, which leads Henry to become jealous that she kissed Kid Danger, not knowing it was him. Ultimately [[spoiler:subverted when Kid Danger sets up another chance to save her but she rejects him explaining she has a boyfriend and the kiss was a mistake.]]

* In the ''Series/HenryDanger'' episode "[[Recap/HenryDangerS1E17ElevatorKiss Elevator Kiss]]", Henry saved Bianca from a malfunctioning elevator. While hanging from his safety line in the shaft, Bianca kisses him, which leads Henry to become jealous that she kissed Kid Danger, not knowing it was him. Ultimately [[spoiler:subverted when Kid Danger sets up another chance to save her but she rejects him explaining she has a boyfriend and the kiss was a mistake.]]

* In the ''Series/HenryDanger'' episode "Elevator Kiss", Henry saved Bianca from a malfunctioning elevator. While hanging from his safety line in the shaft, Bianca kisses him, which leads Henry to become jealous that she kissed Kid Danger, not knowing it was him. Ultimately [[spoiler:subverted when Kid Danger sets up another chance to save her but she rejects him explaining she has a boyfriend and the kiss was a mistake.]]

* ''WesternAnimation/HenryDanger'': In [[HenryDangerS1E17ElevatorKiss "Elevator Kiss"]], while hanging from Kid Danger's safety line in the shaft after the elevator falls, Bianca kisses him, which, as Charlotte points out, technically qualifies as cheating since she doesn't know Henry is Kid Danger. The rest of the episode has Henry jealous about Bianca but can't tell her why as she never told anyone she kissed Kid Danger. Ultimately subverted when Kid Danger sets up another chance to save her but she rejects him explaining she has a boyfriend and the kiss was a mistake.

-> ''"Only a guy with ''my'' nutty luck could end up being his own competition!"''

%%* The ArrangedMarriage plot shows up in the short 1926 silent film ''Crazy Like a Fox'' and its "talkie" 1937 remake ''The Wrong Miss Wright''.

%%* ''Literature/BooksOfBayern'': Played straight and to the letter in ''The Goose Gir]''. (Though it was complicated by [[GoldDigger the third wheel]] masquerading as the heroine.)

%%* ''From This Moment On'' by Lynn Kurland
%%* ''The Forest Lord'' by Susan Krinard

%%* ''The Imposter'' by Celeste Bradley

%%* The webcomic ''Webcomic/RedString''.

* In the ''Film/StarTrek2009'' fanfic ''[[https://archiveofourown.org/works/14962537/chapters/34674317 The World Well Lost]]'', Kirk and Spock first meet as teenagers on Tarsus IV and fall deeply in love, but Spock's memory ends up damaged such that he remembers only that there was a boy and they had been in love, but not the boy's name or any details about him. When they meet again at Starfleet Academy years later, Spock is unable to recognize Kirk, and Kirk doesn't tell Spock because he doesn't think there's any benefit to be gained (believing, erroneously, that Spock has ''completely'' forgotten him, rather than just forgetting his identity, and therefore there's no chance of rekindling their relationship) and because there's a chance that knowing the truth could put Spock's life in danger. As a result, when Spock later starts to develop feelings for his Captain, he feels torn between this "new" love for Kirk and his preexisting relationship with this boy from his past, never realizing they're one and the same, and ends up experiencing a significant amount of distress at the impossible choice he's seemingly faced with. At the climax of the story, Kirk is finally forced to tell Spock the truth.

* In the ''Film/StarTrek2009'' fanfic [[https://archiveofourown.org/works/14962537/chapters/34674317 The World Well Lost]], Kirk and Spock first meet as teenagers on Tarsus IV and fall deeply in love, but Spock's memory ends up damaged such that he remembers only that there was a boy and they had been in love, but not the boy's name or any details about him. When they meet again at Starfleet Academy years later, Spock is unable to recognize Kirk, and Kirk doesn't tell Spock because he doesn't think there's any benefit to be gained (believing, erroneously, that Spock has ''completely'' forgotten him, rather than just forgetting his identity, and therefore there's no chance of rekindling their relationship) and because there's a chance that knowing the truth could put Spock's life in danger. As a result, when Spock later starts to develop feelings for his Captain, he feels torn between this "new" love for Kirk and his preexisting relationship with this boy from his past, never realizing they're one and the same, and ends up experiencing a significant amount of distress at the impossible choice he's seemingly faced with. At the climax of the story, Kirk is finally forced to tell Spock the truth.

* In the ''Film/StarTrek2009'' fanfic [[https://archiveofourown.org/works/14962537/chapters/34674317 The World Well Lost]], Kirk and Spock first meet as teenagers on Tarsus IV and fall deeply in love, but Spock's memory ends up damaged such that he remembers only that there was a boy and they had been in love, but not the boy's name or any details about him. When they meet again at Starfleet Academy years later, Spock is unable to recognize Kirk, and Kirk (believing, erroneously, that Spock has ''completely'' forgotten him, rather than just forgetting his identity) doesn't tell Spock because he was previously told that if he did, it would put Spock's life in danger. As a result, when Spock later starts to develop feelings for his Captain, he feels torn between this "new" love for Kirk and his preexisting relationship with this boy from his past, never realizing they're one and the same, and ends up experiencing a significant amount of distress at the impossible choice he's seemingly faced with. At the climax of the story, Kirk is finally forced to tell Spock the truth.

* In the ''Film/StarTrek2009'' fanfic [[https://archiveofourown.org/works/14962537/chapters/34674317 The World Well Lost]], Kirk and Spock first meet as teenagers on Tarsus IV and fall deeply in love, but Spock's memory ends up damaged such that he remembers only that there was a boy and they had been in love, but not the boy's name or any details about him. When they meet again at Starfleet Academy years later, Spock is unable to recognize Kirk, and Kirk (believing, erroneously, that Spock has ''completely'' forgotten him, rather than just forgetting his identity) doesn't tell Spock because he was previously told that if he did, it would put Spock's life in danger. As a result, when Spock later starts to develop feelings for his Captain, he feels torn between this "new" love for Kirk and his preexisting relationship with this boy from his past, never realizing they're one and the same, and ends up experiencing a significant amount of distress at the seemingly impossible choice he may have to make. At the climax of the story, Kirk is finally forced to tell Spock the truth.

* In the ''Film/StarTrek2009'' fanfic [[https://archiveofourown.org/works/14962537/chapters/34674317 The World Well Lost]], Kirk and Spock first meet as teenagers on Tarsus IV and fall deeply in love, but Spock's memory ends up damaged such that he remembers only that there was a boy and they had been in love, but not the boy's name or any details about him. When they meet again at Starfleet Academy years later, Spock is unable to recognize Kirk, and Kirk (believing, erroneously, that Spock has ''completely'' forgotten him, rather than just forgetting his identity) doesn't tell Spock because he was previously told that if he did, it would put Spock's life in danger. As a result, when Spock later starts to develop feelings for his Captain, he feels torn between this "new" love for Kirk and his preexisting relationship with this boy from his past, never realizing they're one and the same. At the climax of the story, Kirk is finally forced to tell Spock the truth, revealing that Spock's predicament was never a true decision he was faced with.

* In the ''Film/StarTrek2009'' fanfic [[https://archiveofourown.org/works/14962537/chapters/34674317 The World Well Lost]], Kirk and Spock first meet as teenagers on Tarsus IV and fall deeply in love, but Spock's memory ends up damaged such that he remembers only that there was a boy and they had been in love, but not the boy's name or any details about him. When they meet again at Starfleet Academy years later, Spock is unable to recognize Kirk, and Kirk (believing, erroneously, that Spock has ''completely'' forgotten him, rather than just forgetting his identity) doesn't tell Spock because he was previously told that if he did, it would put Spock's life in danger. As a result, when Spock later starts to develop feelings for his Captain, he feels torn between this "new" love for Kirk and his preexisting relationship with this boy from his past, never realizing they're one and the same. At the climax of the story, Kirk is finally forced to tell Spock the truth.

* In the ''Film/StarTrek2009'' fanfic [[https://archiveofourown.org/works/14962537/chapters/34674317 The World Well Lost]], Kirk and Spock first meet as teenagers on Tarsus IV and fall deeply in love, but Spock's memory ends up damaged such that while he remembers only that there was a boy and they had been in love, but not the boy's name or any details about him. When they meet again at Starfleet Academy years later, Spock is unable to recognize Kirk, and Kirk doesn't tell Spock because he was previously told that if he did, it would put Spock's life in danger. As a result, when Spock later starts to develop feelings for his Captain, he feels torn between this "new" love for Kirk and his preexisting relationship with this boy from his past, never realizing they're one and the same. At the climax of the story, Kirk is finally forced to tell Spock the truth.

** In a somewhat more straightforward example, Bender seduces his own girlfriend while pretending to be her ex-husband Flexo to test her faithfulness.

* ''{{WesternAnimation/Centaurworld}} features an unusual case of a two person relationship ''becoming'' a love triangle. [[spoiler:The Elktaur fell in love with a human Princess, who was genuinely interested in him, but he was convinced that she would never love a centaur. In self-loathing, he used the power of the Portal Key to split himself into a human half and an elk half, both of them copies of the same mind. The human, who became the General, married the Princess, while the Elk continued to long for her.]]