What are your interests op?
I’m a massive Star Wars fan myself and have eagerly awaited each movie (even the ones that turned out totally duff unfortunately) and have some memorabilia too, I’d have more if I could afford it and had the space!
I am (still) a massive George Michael fan too.
I’m a huge “friends” fan too and have been since the first airing, I know the show inside out and have a fair amount of memorabilia. I’m beyond excited about the new episode/tvm being made (details seem vague at the moment).
I’m a big movie and tv fan generally speaking not as in simply watching but read related magazines, articles and books, know lots about various producers and directors and other crew and have personal favourites, filming and scriptwriting techniques etc
I have friends who are fans of Harry Potter, Disney, terry Prachett, Star Trek, civil war re-enactment, live role play games, video gaming (showing my age there but you know what I mean), various sports teams and music acts...
All sorts
I find it far more odd if someone DOESN’T have a passion in life.
I may not personally like what they’re interested in (I’m quite anti Disney myself because of the bigotry and corporate control they exercise, it’s quite disturbing the lawsuits they’ve dodged over the years and the bad publicity they’ve mostly avoided) but I absolutely support their enjoyment of it and when they post on sm or mention they’re going on a trip or buying a coveted and difficult to get hold of item of memorabilia I’m positive with them about it.
A phrase you need to embrace op:
Each to their own!
Everyone has their own likes and dislikes and as long as they’re not harming anyone else then let them crack on and be a supportive friend.
I love my friends and that includes helping them to enjoy the things they like most. Certainly I wouldn't criticise them for liking whatever it is.