What do i do?

My bf and i love each other but are long distance during college. This summer he has worked like crazy and goes on vacation. I don't know why but this has upset me so much even though he does his best to be with me. I keep brinihg it up cause i can't keep my mouth shut but there is no solution to this problem. If we love each and are happy most of the time do we just deal with it?? I'm just confused because i want it to be like how it used to but it can't be. Please give me any of your experiences.