What do you guys think? I will vote for best answer?

I personally think she thinks your attractive enough if shes biting her lower lip. Some girls ask about guys ex girlfriends.. because maybe there nervous. I asked about my boyfriend ex at first to see what she was like and why they broke up so i wont do the mistake she did so maybe shes trying to get something out of you so she wont fool herself. Listen, im a girl and whenever me & my friends want a guy we bite our lip to make ourselves look attractive and sexy to the guys and smile at them to give them a hint that we are interested! Go for it :))!

Yo Chester, mah man, What the heck are you waiting for. She seems like a drop dead gorgeous hottie with class.(answering nervously and all that, without coming on to you), and she has 'feelings' for you. Make no mistake. This Mama sure likes you. Looking at you when you are not looking, biting her lower lips (dude, its lip, not lips)... She is sending out huge signals man like a ship in distress. Go for it but don't scare her off. She is asking about your ex, coz she wants you all for herself and needs to know if you still have hot pants for your ex. Oh she is posessive dude, so never piss her off unless you want to go the way Gaddafi went. Bestta luck.

Dude she is just nervous and good that you made this bold move. Now what you wanna do is that get her number and then escalate your talks from there on. See her in the library or canteen and just ask for her number this time.