I think I've found the best way to have a friendship and sex without the drama. You have to look at the sex as something else to do that you both enjoy. It's great after that. It works better if you where never in a relationship with the person to begin with.
I could never spend all of my breaks at home. My parents drove me NUUUUUUUTS, and they didn't much want me around either. I used to hate that about SF State. The insanely long breaks were killers.
Well, take it easy in the meantime. SF will be waiting for your return.
use the force