Hey man,
If i were you.. this is what i would do...
Obviously you know she s into you more than friends. To me the clue, she has given it to you... since she told you she would probably hookp up with you and do more while drunk.
why not go out with her have a few drinks and let that barrier between you and her become unexistant? Im not saying to get her drunk.. but obviously that feeling of being scared she ll cheat on her bf prevents her from hooking up with you. so if i were you, go out clubbing, make her dance with you, make the tention build up and then make a move.
i think once the two of you hook up, since you dont only have sexual tension, also many things you like to do together, she ll understand you r great for her.
