Most Helpful Girl
Eh, if she doesn't want you; I'll have you. You're cute.
Lol - but seriously; it's a tricky situation. I can be hard at times to move on from the past; especially one that never really ended because it never really began. She'll have a lot of what ifs floating around in her head. Trust me, I know. I've been in an on off never boyfriend girlfriend thing for a year now and sometimes when I meet someone new; it's hard to say yes.
But eventually she'll have to move on. And it looks like she's starting to do that. The fact that she went out with you twice is good. She's not just saying yes, then flaking out last minute because she changes her mind. She obviously likes you and enjoys the time you spend together.
Honestly you need to think about what you want to do. Do you want to ask her out again? bare in mind that this could be a fairly long transition period from two people getting to know each other, to becoming a relationship; with her needing to move on more fully. I wouldn't worry about the not talking first thing - when I like a guy I'm always a bit shy about sending the first text, or saying hey first when I see he's online. So maybe it's like that. It's a lot easier talking to someone you have a past with sometimes - it doesn't necessarily mean you still see a future with them.
If you like her enough, go for it.
But if you're looking for a relationship that's maybe a bit easier off the bat, then maybe lay back a little and see if she comes to you - or if you find someone else in the meantime.1THIS IS NOT RELEVANT ANYMORE