People always tease me because I have never seen a star wars movie
Wait! You've really never seen one? Why have you never seen a Star Wars movie?
I just never saw one. I don't care for the characters.
Not everyone has seen certain movies. It's okay to not see certain movies if you don't care for them.
I thought it was fine, but people keep teasing me.
You have nothing to feel bad about. There are a ton of people who don't care for science fiction like that. You're friends are being rude when they make such a big deal about it.