Why is he interested in me..?

So i'm 13 years old, and I'm friends with a 21 yr old guy. Before you call him a creep please hear me out. We met on Facebook and he thought I was older. We talk everyday and hangout. He told me he liked me. He said he wanted to wait till I was 16 (Legal age in Canada) to actually be more than friends. I asked him if he was trying to just get in my pants, He told me he would never and it wasn't worth going to jail. I really really like him but I'm kind of scared.. I mean I don't wanna end up getting hurt or getting him in trouble. We are nothing more than friends, is this wrong?