SOMEONE PLEASE HELP!!!?

ok so i used to talk to this boy who goes to college in cali. But he always comes to ATL to visit. Me and him were talking but he has a g/f. they been dating for 7 months. But i really fell for him. But he hasnt been texting me back or anything. He only texts me when he wants to. But he still want to "hookup" with me when he comes to visit in april. what do i do?