Forget him...he doesn't sound mature enough to carry on an adult relationship.
..........if he does this now, you don't need him for the rest of your life.
i think he is imature, and you would be wise to move on. i know your hurt, but to me he was looking for an excuse, and grabbed the first opportunity. You explained your story clearly and rationally, and so i think you are not overly emotional or difficult to reason with. And so i think his behavior is rude and extreme. Blocking is juvenile. Your not exactly a stalker. I wouldn't give him the time a day..and any face book or friends list he is a part of..i would hit the delete button, and never look back.Your in collage, and girl, you have a whole future to start. So go forward, concentrate on the postives in your life.