What should I do about this?

Okay, So me and my boyfriend have been dating for like 2 months, but I like someone else at the same time. The thing is, is that whenever i get into a relationship i always end up falling back for this dude. Lets call my boyfriend ' Leo ' and the dude i like ' Clyde ' . Well, i dated 'clyde' last year but he didn't seem like he cared. so i broke up with him. but now that iv hung out with him more iv grown more attatched. Me and ' leo ' have hugged only once in our 2 month relationship. and me and clyde have hugged a lot. He always hugs me from behind and it makes me like him even more. ' leo' has moved away and doesnt go to my school anymore. I got mad at him because he didnt tell me where he moved untill i found out by one of his friends yelling it out at me in the middle of class. Leo lives 45 min. away from me now. Clyde goes to my school , so i see him everyday. I talk to him every day. Me and Clyde have a lot in common. Basicallly everything. Me and Leo have barely anything in common. I want to have a relationship with Clyde, but im afraid to break up with Leo because we were bestfriends before we dated. So i dont know how it would turn out. Clyde told me he " really really really likes me " I just don't know what to do anymore.