If the girl doesn't want to date you just because you don't have a car, maybe it just isn't meant to be. But she's into you, so I think you'll be ok. I started dating my current girlfriend before I had a car, and it worked out fine. I told her right at the start about it, just so it was known (we live in a somewhat rural area, public transit is practically nonexistent, so a car is absolutely necessary to get around) and she was totally okay with it. It made for a good excuse for us to end up at my place at the end of our dates when she had to drop me off, so I guess you can say things turned out better than expected.
I think you answered your own question. The touch pad seems to be mainly used as a button, unless it's a first party game. I know some games let you scroll around maps with it though, maybe destiny will let you do that? I'm not in the alpha.
@machofantastico: Just so you know, GR and Uncharted have been on Vita's PS+ for a while now and probably still have a couple months left in them before they get swapped out. Also, Vita Uncharted sucks pretty hard, but GR was fun enough.