Recently I found out this girl I've been hardcore crushing on for the past few years became single. She had been dating this guy for a bit over 3 years, and it seemed to be a pretty serious relationship. Apparently she broke it off a few months ago, but kept it very hush-hush so I only recently heard about it.
I've been playing cat and mouse with her for years, as we've had the same class together since we were both freshmen and share the same major. I'd always catch her giving me furtive looks from across the room, and she has always been pretty receptive to my flirting, even when she was dating her boyfriend. Now that she's single, I want to strike while the iron is hot.
This is where the problem comes in: she's out of state for the summer, and won't be back for about 6 more weeks. We've been chatting it up on Facebook once or twice a week, flirting, bullsh1tting about what we've been doing, how we're going to hang out when she gets back, etc. She even asked me what classes I am taking in the fall, and picked one I'm in so we could be study partners. I'm all about letting her screw around for a bit since she hasn't been single in a long time, so that when she gets back she might be a bit more open to another relationship.
As for the ex, he won't be much of a problem. We almost never talk about him, and the one time she mentioned him she seemed annoyed as he kept contacting her even months after the break-up. So he's still pretty AFC as far as I can tell.
Basically the only advice I really need here is how I can keep escalating attraction without letting her get too comfortable around me. I know there definitely has to be an equilibrium between the two to keep from falling into the friend zone, but it's difficult to come up with ways of doing that without physical contact. Anyone have a suggestion?