A ComedyTrope where one character claims that they are someone else's love interest, even though the two are not actually in love, dating, or (in extreme cases) even anything more than casual acquaintances. This character may exhibit traits of StalkerWithACrush, although they will deny that they are any such thing. They will also become a GreenEyedMonster if they see their "boyfriend/girlfriend" anywhere near another boy/girl, [[FacePalm even though they have no legitimate claim to the person.]] For maximum comedy, the object of their "love" may find themselves dragged out on a date against their will.

Can be TruthInTelevision. The psychological disorder Erotomania causes an extreme manifestation of this trope wherein the afflicted individual comes to believe that a specific person is in love with him/her and acts based on that belief. The fixation can be triggered by something as innocent as a smile from the person as they pass the afflicted individual on the street.

Compare ClingyJealousGirl, CrazyJealousGuy and StalkerWithACrush. Contrast SheIsNotMyGirlfriend. Also, this kind of behavior is typical of the {{Yandere}}.
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!!Examples:

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[[folder: Anime And Manga ]]

* Tokiwa from ''Manga/AskDrRin'' plays this trope for drama [[spoiler:while he's possessed]].
* ''Webcomic/AxisPowersHetalia'': Sweden once said that Finland was [[HoYay "my w'fe"]], much to Finland's shock.
* ''LightNovel/BakaAndTestSummonTheBeasts'': Shouko claims Yuuji is her husband and not even Yuuji is allowed to say anything to deny it. Considering [[LonelyRichKid their]] [[OnlyFriend shared]] [[BecauseYouWereNiceToMe past]], however, things aren't as easy as they seem.
* ''Manga/DeathNote'': Immediately after ''meeting'' Light, Misa declares herself to be "his girlfriend." Of course, this quickly becomes a very dark example, considering [[ManipulativeBastard who]] [[SerialKiller Light]] [[ItsAllAboutMe is]] and what becomes [[LoveMakesYouCrazy of]] [[LoveMartyr Misa]]. Lampshaded in the dub:
-->'''Misa:''' "Light-darling!"
-->'''Light''': "D-did you just call me ''darling''?!"
* Megumi "Nodame" Noda from ''Manga/NodameCantabile'', so much. She actually declares herself Chiaki's wife, and some people take her seriously, but they're actually just neighbors and members of the same orchestra, and [[{{Tsundere}} Chiaki]] mostly thinks of her as a pest outside of being a genius pianist. [[spoiler: She pretty much hangs around him so much that eventually he stops correcting people that she's not his girlfriend, and even starts ''referring'' to her as his girlfriend and eventually they get married.]]
* Boa Hancock from ''Manga/OnePiece'' claims to be Luffy's soul mate, despite the fact [[IdiotHero Luffy]] has [[ObliviousToLove never shown]] [[CelibateHero even a passing romantic]] [[{{Asexuality}} interest in her]]. Elder Nyon mentioned that Hancock is under some sort of "love sickness," and whatever it is seems to be affecting her pretty badly. She interprets even the vaguest, most non-chalant show of affection or camaraderie from Luffy as a sign that he's her husband and that they are meant to be together for eternity. [[spoiler: It's also a hint of her DarkAndTroubledPast, which started [[BreakTheCutie breaking]] [[JerkAssWoobie Hancock]] when she was just 12 years old -- deep down, the powerful Amazon Queen is still an emotionally-stunted young girl... and Luffy was among the first non-females [[BecauseYouWereNiceToMe who was kind to her]].]]
* In an episode of ''Anime/{{Pokemon}}'', Shauna, the GirlOfTheWeek, introduces herself as the girlfriend of Dewford Gym Leader Brawly. Naturally, Brawly knows nothing of this when he shows up, but he takes it in stride.
* ''Manga/RanmaOneHalf'': Tatewaki Kuno, poor deluded fool, is this for any woman he has the slightest interest in.
* Mizore Yukihiro from ''Manga/UQHolder'' declared Touta to be her husband when they first met. Unfortunately for her, she's the only one in his harem that he doesn't have any feelings for (as revealed when he accidentally took a truth potion).
* ''Anime/YuGiOh'', [[BrattyHalfPint Rebecca]] [[ClingyJealousGirl Hawkins]] started claiming that Yugi was her "boyfriend" during her second appearance and kept it up through the end of the series. She at least managed to make Yugi [[LuminescentBlush blush]] and Anzu [[GreenEyedEpiphany jealous]] if nothing else.
* Marika in ''Manga/{{Nisekoi}}'' not only claims that she's Raku's fiancée but also that he agreed to it when they were younger. When we get a flashback not long after, it's obvious that she's making it up: The closest he got to agreeing to marry her was telling her that he likes girly girls with long hair, after which she grew out her hair and taught herself to speak in an archaic rich girl style instead of her country bumpkin accent. She did get her father to ask Raku's father to have them betrothed, but Raku himself was completely uninvolved in this decision and [[HopelessSuitor he never seriously considers going out with her or returning her feelings.]] Given the implications that she remembers more of what happened ten years ago than anyone else she seems to be hoping that he'll mistake her for the actual childhood marriage promise girl whose identity he can't clearly remember.
* Lum in ''Manga/UruseiYatsura'' may be the most famous example: when Ataru [[ItMakesSenseInContext saved the world from an alien invasion by beating her in a game of tag]] and [[AccidentalProposal shouted he could now marry (his then-girlfriend Shinobu, but he didn't say that) Lum decided he wanted to marry]] ''[[AccidentalProposal her]]'', and started acting as a very jealous wife.
* Momiji Oouka from ''Manga/DetectiveConan'' was introduced telling herself that she ''will'' marry Heiji Hattori. The 21th movie is supposed to focus on her, Heiji and Kazuha's potential LoveTriangle, [[spoiler: and according to the trailer, it looks like she made a ChildhoodMarriagePromise with him years ago.]]
* ''LightNovel/InfiniteStratos'': After weeks of hating Ichika and even attacking him with deadly force on several occasions, [[DefrostingIceQueen Laura does a complete 180 in personality]] when she rescues Ichika from a ClingyJealousGirl, [[ForcefulKiss kisses him]], and [[WackyMarriageProposal declares him to be her wife]]. The next morning he wakes up to find her naked in his bed. However, after he gets used to the idea of Laura not wanting to murder him, he treats her much the same as his other love interests.

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[[folder: Comics ]]

* ''ComicStrip/{{Peanuts}}'': Sally is like this towards Linus. "I am NOT your sweet Babboo!"

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[[folder: Fan Fic ]]

* From time to time in ''FanFic/TheVinylAndOctaviaSeries,'' Vinyl will claim that Octavia is secretly hot for her or something similar.
-->�Can you believe this mare, Octavia?� Vinyl laughed. �Just because you�d totally do me, she thinks that we�re in a relationship!�

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[[folder: Film ]]

* Stuntman Mike from ''Film/DeathProof'' seems to have this for his victims, but he's a serial killer, and his feelings weren't PlayedForLaughs.
* The French film ''À la folie pas du tout'' (in English, ''Film/HeLovesMeHeLovesMeNot'') features Creator/AudreyTautou as an erotomanic who displays this behavior towards a happily married doctor who is barely aware of her existence. She takes his rejection about as well as you might expect.
* In ''Film/SinginInTheRain'', the in-story main couple are rumored to be together--and Lina goes along with this, because she read it in the tabloids. A few scenes are devoted to Don trying to convince her it isn't true.
* Eddie Brock has this opinion of his 'relationship' with Gwen Stacy in ''Film/SpiderMan3''. Gwen comments that all they've done is have coffee together.
* The romantic comedy ''Film/WhenInRome'' ''runs'' on this trope with several suitors enthusiastically chasing the protagonist around.
* In ''Film/TheForceAwakens'', Maz Kanata refers to Chewbacca as her 'boyfriend' (albeit not entirely seriously.) What Chewie thinks about the situation remains a mystery as he's preoccupied elsewhere, fixing the ''Millenium Falcon'' at the time.

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[[folder: Literature ]]

* [[{{Yandere}} The White Queen]] in ''LightNovel/TheUnexploredSummonBloodSign'' sees herself as already being married to Kyousuke, despite the latter hating her to the point of devoting his life to killing her. The Queen refers to their past together as their "honeymoon" and [[spoiler:calls Kyousuke's father "Father"]].

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[[folder: Live Action TV ]]

* He only lasted one ''Series/{{Charmed}}'' episode, but a fellow half-whitelighter once came to claim Paige as his wife. He'd gotten advice from several fortune tellers that the two belonged together and wouldn't take no for an answer [[spoiler: until Paige gets engaged to her actual love interest, Henry]], though he doesn't do anything to force her into love or marriage. He seems content in trying to convince her, proving himself, and challenging Henry for her hand.
* PlayedForDrama on ''{{Series/Dexter}}'', when a murder victim's "girlfriend" turns out to be a stalker who killed him in a rage because he didn't return her feelings.
* [[HopelessSuitor C.C.]] [[RichBitch Babcock]] on ''Series/TheNanny'' sees herself as the only woman in Maxwell Sheffield's life, rather than Fran Fine, even though Maxwell sees her as nothing more than his business partner.
* ''Series/WizardsOfWaverlyPlace'' had Harper dabble in this trope for a few seasons with Justin before moving on to Zeke. She would routinely talk about her (imagined) relationship with Justin and claim that any other girl Justin dated was only a temporary fascination and that he would eventually find his way back to her.

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[[folder: Video Games ]]

* ''VideoGame/TheKingOfFighters'': In some continuities, Kensou refers to himself as Athena's boyfriend. Athena doesn't agree.
* ''Franchise/SonicTheHedgehog'': [[{{Tsundere}} Amy Rose]] is this to Sonic. She constantly tries to marry him, flirts with him, and is presented as a StalkerWithACrush in many early 3D ''Sonic'' titles. Sonic himself [[ChasteHero isn't interested]] in romance, but likes her as a friend.
* ''VisualNovel/PhoenixWrightAceAttorneyTrialsAndTribulations'': Larry Butz is one for Iris, declaring that they're in love and that they're going to get married. Iris [[ObliviousToLove doesn't even notice]] that he has a crush on her, until [[spoiler: Edgeworth]] spells it out for her, is not in love with him and ''is'' in love with someone else. Larry repeats that in ''VisualNovel/PhoenixWrightAceAttorneySpiritOfJustice'' with Ellen, declaring that he'll marry her even though she was about to marry someone else.

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[[folder: Western Animation ]]

* Panini is this towards the title character on ''WesternAnimation/{{Chowder}}''. [[spoiler:The DistantFinale has them eventually married.]]
* In an episode of ''WesternAnimation/SupermanTheAnimatedSeries'', Superman frees a female Kryptonian named Mala from the Phantom Zone. After a while, she starts getting jealous of Lois Lane and, when a reporter asks Superman and Mala if they're a couple, Mala immediately says "yes" and is enraged when Superman disagrees.
** There was also Maxima, who wanted Superman to marry her, and not quite understanding why he didn't want to marry her, being used to always getting her way.
* On ''WesternAnimation/TotalDrama'', [[LoonyFan Sierra]] is definitely the StalkerWithACrush type, first to [[DoggedNiceGuy Cody]] and later to [[BlackAndNerdy Cameron]] (mostly because Cody wasn't around and she kept hallucinating Cameron as him). Aside from putting Cody through hell and getting violently jealous/protective, she once tried to [[InvokedTrope invoke]] an AccidentalMarriage on him.
* From ''WesternAnimation/MiraculousLadybug'', [[AlphaBitch Chloe]] considers herself to be Adrien's boyfriend and takes every opportunity to display her affection towards him. Adrien himself regards her as a friend at best--and at worst, a way too [[NoSenseOfPersonalSpace clingy]] annoyance.

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[[folder: Real Life ]]

* Famously, a guy named John Hinckley, Jr. had an erotomanic delusion involving Creator/JodieFoster. It led to him shooting UsefulNotes/RonaldReagan to "impress" her.

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