Met someone at college. So worried he will find someone over the summer. Should I move to his city?

Whats best for u? Well, a few things to consider. 1: you have to do whats best for you. 2: if the relationship is genuine, then distance shouldn't matter. Another way to look at it, if he goes, and does find someone else, it wasn't meant to be, and you've seen his true colors! good luck!