My boy friend. Help ?

Soo. My boy friend isnt really talking to me. This past week hes been acting very weird. I don't no what to do. I think hes acting like that because i use to be a total a** to him. I just don't no what i did or what went wrong. In the past he has cheated &' played me and i have done the same so now we both dont trust each other.

And just the other day i went and met another guy we started talking and my boyfriend found out. He wasnt mad he was just like "ohh you have to pick me or him" so i picked him. &' Just yesterday i had to tell my boyfriend that he came to my house to pick something up from me and my boyfriend thinks that me and him did something. So NOW i feel that hes talking to other girls because he hasnt called me or anything. He called me yesterday we talked for about 5 minutes. And every time i talk to him he hangs up on me &' i call right back and he doesnt answer my call.

Do you think hes trying to teach me a lesson ? How i used to treat him like crap &' now hes treating me like crap to show me how i used to be towards him ?