This guy I like is popular and I'm shy and semi popular, he's. Dating my best friend and he told me before he started dating her that he only liked her as a friend, I don't understand? But he texted me saying he liked me but didn't want to be in a relationship. Even the guy I likes best friend says he doesn't think he ( the guy I like) likes my best friend... Idk what to do should I text him asking why he doesn't want me? A year ago he asked me out and I said no because I didn't like him and now I like him so much and I
Sick of waiting around waiting for him to do something so Please help!! If u need more info I can give more! Any help will be appreciated very much, thanks!

You should leave this alone. No matter what he has told you, that girl is his girlfriend. Maybe he wants you as a side piece or something.
Don't act desperate, leave him alone.