I feel heart broken...:/?

Do you know why you guys broke up? If so that is probably be the problem; honey. If not than you need to talk to her. In person. Obviously your confused & you have a right to know why she's being like that. Call her or text her & ask to hangout sometime to talk everything over. You have a right to know what's going on. Eccpesialy if it's messing with your heart.