Long Distance Relationships In College?

I have been dating my girlfriend for nearly two years. In August, we are going to college (I’m headed off for California and she is staying on the east coast).
I am hesitant to stay together and I know she wants to stay together. I would like to be with her, but don’t think it will work.
So all you west coast guys… are you meeting/did you meet (hot) girls in college? Did you stay with a high school girlfriend (did it work)? Any success with open relationships?
What should I do??