Is there any chance of you ending up near each other after High School?
Even if you are far apart, things can still have a way of working out. I don't have a long-distance relationship like yours, but I do live a long distance from each of my siblings and High School friends I was close to. We hardly stay in touch. But, there are times when we're able to meet together, and when we do, I always feel just as close to them, if not closer, than we were before.