That's nice. As long as you didn't use her as a rebound girl.
Are you guys expressly in a dating relationship yet? Or more just a friends...slowly going into dating mode? That is
irrelevant as to when you ask her out, I think. I'd be very surprised if a guy I was friends with (and I thought we were only friends) suddenly asked something clearly a romantic mode.
edit edit: irrelevant??? I'm sorry, I meant it is relevant as to when you ask her out... what was I thinking???