you know what...if you can't TELL HER that she's making u uncomfortable...then you have issues because if you can't tell your friend something, how close of a friend are they?
If you don't feel well when you are talking to her, then stop talking to her. Honestly...if someone posted that it hurt when they poked the gash in their leg, people here would yell at them to STOP POKING THE GASH!
My advice is fsck her(not literally, she's not a computer). Forget about her and get laid. Heck, lemme itemize it for you then. Go out with 5 other girls. Romance them, bed them down, whatever...just forget her completely. If she comes back to you, grow a pair, lay down some terms and if she doesn't like it, you don't need her. If you go around like a lapdog pining for her, I guarantee that a romantic relationship wouldn't work because she's got too much power over you and you don't have enough self respect to function without her then.