As for the healthy friendships in my life, I'd say there were other aspects to the friendship, so although it was still annoying when the friend didn't get into my interests, I didn't mind getting into theirs, because that meant we got to bond more. I just feel like the easiest way is to bond is through interests, because especially if they have autism/ADHD, it's gonna make them really happy to talk about (I remember last year I was the only person who listened to one of my friends about their interests, and I got into their interests, and we got really close because of that)
I have one online friend that likes TUA that I occasionally talk to, and I think I'm making a friend through fanfiction too (I read their fic, commented how much I loved in, got inspired to write something similar, and now they're reading mine and they love mine). Also I have one irl friend now whose previous special interest was TUA, though I've only been able to talk to him about it once or twice so far
So I guess I'll be okay with those guys, but it is quite hard to find people who like TUA compared to Marvel and stuff. But yeah, I do have someone to be excited about TUA with, and I have people who like other things I like like psychology and stuff, but in other friendships, most of what I do is listen to their infodumps to build the friendship. Annd I don't know, right now that doesn't seem so bad, I like listening to people be excited about things, and I want to get into things they like because I like them, and that's the best way I know how to bond. But then of course if I think about them not getting into my things and it makes me sad
