My partner got upset at me for fan girling over a character in a movie we were watching together, they told me they hate how I’ll fan girl over guys in shows (I only fan girl over anime btw not real people.) I feel kinda upset because I never thought it was a problem when we were dating, I’ve always been like this since I can remember (even as a kid) and I know I should try to not make my partner upset but when I think about it I get conflicted. It’s so reasonable for my partner to ask this of me because sometimes it can turn into me obsessing about a fake character, to the point I’ll buy merch of them.

you are allowed to fan girl over things. it's a completely normal thing to do. people buy merch for their favorite characters (and real people too!) all the time! i think your partner is being weirdly controlling in this. you are simply having fun so what's the problem? if it's a "you don't pay enough attention to me" thing then thats seriously concerning. having a favorite character is not a big deal "obsessing" over a favorite character is not a big deal. if you aren't allowed to look away from your partner for a little while to enjoy something that makes you happy, that is not okay.