Good friends don't have to be in communication all the time. I have a good friend I speak to maybe once a month, or less, but every time we do, we have a blast. I know other people too, who have friends they don't see or speak to for years at a time, but they still are friends, and when they meet up, they have a great time. You don't have to speak to them daily to have a good friendship. I feel like that's reserved for school/college/work friends; whom you might not necessarily be that close with. I wouldn't feel guilty for not being around all the time.