We're not sure that he used you, or that your expectations were too high. More than likely, when you two were together this summer, he did like you, and did want to keep seeing you, and did want to be your boyfriend. But when you went home and he realized what being in a long-distance relationship entails (a lot of phone calls and IMs and not a lot of face time) maybe he got freaked out and realized that's not something he's ready for. Even though you are hurt and disappointed (and have every right to be!), you should be grateful he was upfront with you instead of leading you on, or letting you dangle as a "back-up" while he started hanging out with other girls.

As for being his friend, that is totally up to you. If you think he's fun and nice and you want to hang out with him (or even just causally stay in touch), why not? But if it will make you feel bad because you had hoped you'd have something more with him, or you think you might be jealous if he told you about other girls in his life, then it's totally fine for you to cut him loose and wish him all the best. That way, you'll have more time to be with your own friends, do school stuff, and maybe even find someone new that you like, someone hopefully closer to home!

—Andrea Pyros