breakup

So I've never posted on here before, but recently my boyfriend of six months out of the blue broke up with me and never gave me a reason why. He was making different excuses at different times, and they were all my fault. He had already asked me to prom, he just had to do the promposal. Then 3 days later he wanted to break up. There is obviously better out there for me, it just breaks my heart because it was out of the blue, and the way he acted when he broke up with me was a guy I would have never been allowed to date.

Not sure what I'm wanting to hear, because I am not doubting my self worth and I know that I'm not the only one going through this, I just don't want to feel depressed. I mean I'm an involved high school athlete, I'm am involved in clubs and extra curricular activities and I have friends, I just want to know why. Even thought he's never going to tell me why or apologize for the things he said to me and the way he acted.