Scenario:
Your friend shows up in a beat up old car. It's got big rust holes in it, the paint is faded and it's obvious the car has been painted several times because several colors are showing. The engine runs terribly and the transmission grinds.
Your friend spends 3 months fixing up this car, then wants to sell it to you and part of the sales pitch is that the car was always well maintained, reliable and has never had problems.
Would you say "Bullsh*t! I KNOW this car. I saw this car when you first dragged it home!"
Well...it's the same with this girl. Unfortunately, she knew you from the old days. It is possible to overcome much of the damage done then, but she'll always remember the old you just as you'd alwasy remember the rust holes in that car.
The only thing you can do is cultivate her for the sole purpose of using her to meet new women. If you have NOTHING else to do on a weeknight, ask her to go bowling with you, or something simple like that, and ask her if she'd like to bring along one of her friends. (hint, hint)
When she has a party, she might invite you, where you're more likely to meet more of her friends (hint, hint)
As far as trying to make a romantic relationship with her? No. Chalk her up to a learning experience and be grateful you're having it now and not later on in life. Be thankful you're learning and that you know what the DJ way is. So many guys out there never learn. Never.
So, do not try to seduce her or you'll not only drive her away, but you'll blow a golden opportunity to tap into a minefield of other females. Be nice to her. Cultivate her as a FRIEND. Then hit on her girlfriends since it's much easier to get a girl while you already have one at your side.