It doesn't sound like he wants anything to do with you anymore.

That's harsh, but I agree with what a lot of the other posters said and I just wanted to say I used to feel the exact same way when guys have done that to me.

I was always chasing after them and they really do like to do the chasing. He may just be avoiding you because he just doesn't want to have anything to do with you anymore and just doesn't have the balls to tell you why.

That's the worst. But after this message if he still doesn't contact you, you should just try and forget about him.