Dear Soccer Chick,
Long-distance relationships of the romantic variety are never easy — particularly for the young.
However, as much as it pains me to tell a young, romantic poppet like yourself, what you and your friend have is not a coupled relationship. He hasn't ever actually asked you out on a date, nor have you asked him.
If he comes back to town on a regular basis, you can work up the courage to pursue dating. If not, I'm afraid it's time to move on.
You can always dust off that summer reading list.