Are me and my girlfriend done?

I understand, summers are definitely tough! I don't think a break is the solution though because that leads to other things. I would phone her and tell her how you feel, and maybe start talking more to make it feel like you two are still together. I think a break would be an easy way out of the problem. Either both of you need to start making more of an effort, or break up indefinitely. I think that summer, not a break is a test of your relationship, and if you can't make it through the summer then you wouldn't make it anyways.