You want something more than friends and she can sense it. I belive that is what will keep her right where she is. This feeling of you wanting more is giving her what she needs/wants.
Reverse to rolls, how would you feel if every time you were around her you could sense she wanted you. I think it would feel pretty good to have someone want you like that. I dont think you would want to lose that feeling and that is exactly what you must take away.