Most Helpful Girl
It sounds as though she might just be saying that because she doesn't want you to be happy. Maybe things didn't work out with her boyfriend and she regrets messing things up with you before. I think your girlfriend has got to come first as she hasn't done anything. Be open and honest with her and don't hide things from her, unless you want her to break up with you too!
Most Helpful Guy
You watch yourself. Sounds pretty fishy. Could be she's just seeking attention or could be she wants to jeopardize everything for you.