sexual frustration

I'm out of college for the summer and back home. My FWB is back at in my school's town since he lives there. That's a good 10 hour drive. I'm getting really sexual you frustrated and there is nobody in my town that I could (or would) hookup with since my FWB basically has my legs weak each time we have sex and because I trust him in that way to know I'm gonna be safe. 
It's gonna be another 3 months before I go back. Self stimulation doesn't work as well and when I get sexually frustrated, you know. I get even more short tempered than I already am. I don't know how I'm gonna do this. Any help is welcome.