Is she comfortable enough with you, though? When was the last time you hung out with her? And try not to focus so much on sex if you're trying to build a relationship (I'm not sure if staying the night was a sex-driven thought though, just saying). Sex is great and all, but it comes after a lot of things. Otherwise it's just a booty-call with a label of "girlfriend", which I'm pretty sure you don't want, I mean, you're asking in the "I want a girlfriend" thread after all. ;) Hey, when you go dry for 10 months, SOME sex is better then none. But I was talking to her a bit more and she wants to be around me quite alot. We're hanging out all Sunday day+night and wants me to see her whenever she/I can. Sounds like she's looking for a relationship with you also. Hell, if all goes well after the drive ask her to go out for a dinner and movie.