Whatever dude.. I passed up head from my girlfriend tonight to play in a tribes match. Iv'e been with her for a year and a half though, and marriage is more serious than just dating..
You'd be lucky to find a girl that won't mind the computer sucking up a lot of your time, so I'd say try and make it work with her first. Just think about how you'd feel if you lost her and all you did was play tribes.. you know it would suck and you'd feel malarkeyty not having her to be with.