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.
The answer to how you SHOULD feel is apathetic. Just forget him.
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.