I've fallen in love...with an NPC

[Gwenorai]

Oh so then you know when you say "proven" you actually you know, provide proof, maybe from the papers you've helped publish?

See you when you get back from google lol

Oh, I'm sorry you mean I have to write them? Pity, just have some articles that already exist. You can trounce my argument if you happen to have also written a paper however, I think that's fair.
Just for you; I'll go there. Link for source.
For further reading Here; it's a paid PDF - if you have a university you may be able to access it.
Revalent material:- Baumeister R., Wotman S., Stillwell A. Unrequited love: On heartbreak, anger, guilt, scriptlessness, and humiliation. Journal of Personality and Social Psychology. 1993;64:377–394

As I know reading huge walls of text are a bit 'iffy' here.
7.Baumeister, Wotman, and Stillwell (1993) reported that 93% of males and females have been previously rejected by an object of passionate love and that 95% rejected someone who had such feelings for them. Romantic rejection has several negative mental health consequences: it sometimes results in homicide and suicide (e.g., Meloy and Fisher 2005; Wilson and Daly 1992) and regularly leads to clinically diagnosable depression (Mearns 1991).

Obviously, in most situations, the romance isn't real and is a scripted scenario between yourself and the NPC. Beyond that, it's fantasy. A fictional character can't return the love beyond its scripting unless you intervene and continue to take on the character yourself, at that point you're romancing your own imagination. In the end the NPC can't return the love or 'feels' the same way about you outside of the setting. You're not the WoL. Thus the love is unrequited - which is on par with 'rejection', as it means that the person rejecting you is not reacquainting that affection. Not being able to get that affection you may crave from the person you love is seen everywhere, today. All you have to do is look up, situations where there's an emotionally absent spouse or parents who do not give their children emotion. Finally, obsessions are obviously dangerous in regards to fiction; see below example. Case 1: Leonid Hmelev and the case of Taylor Gamboa Arronis. I'm not saying that OP is doing this, or will end up like this - but it has happened and is a cause of concern if a person falls truly in love with someone who doesn't exist. Like those guys who are in love with anime characters, or my little pony chars.

Have a read. I'm done here.
Obligatory mic drop.