Long Distance Relationships

As I near graduation of my senior year of high school I've been thinking allot about friendships and where they will go once people go their separate ways. If you take a look at some people that have tried so hard to make it work, to see their effort not show up for anything. I just keep thinking what am I to do, cause if you know me I strive to make people happy and make relationships work which as my dad says is a curse and a blessing. I've come down to the conclusion that if I decide to not try at all to keep in touch then my own expectations will not be let down by others and myself.