How to get my friend back?

ok so I was friends with this one kid and I fell in love with him then he got a girlfriend and used me and now that I said his girlfriend has a di*k and now he hates me and wont be my friend again!! I need help on how to get him back and his b-day just passed and I want to get him something but dont know what to get

well if you called his girlfriend that hes not really going to be real happy with you for a while.
id think that you should apologize then let him be for a while...