When did everyone find their SO?

I’m 22 this year and never had a bf. I really like this guy but I don’t think he’s interested in me like that. We are friends and he’s tried to have sex with me a few times when we were drunk. I said no. I just like his personality and sometimes he’s a dick but I like him. I don’t know what to do. I hope it goes further but I don’t think it will. I’m scared if we have sex, our friendship will be weird and never be the same again. What do I do?