Why not try a little role play? What would you say to yourself, or want her to say to you if you are in her shoes? Would you want honesty... or would you like the candy coated lie better? It is a very tough situation to break up with friends. You can try the relationship tactics and make her mad so she breaks up with you, but I won't recommend that - lol!
You don't have to be cruel, but if she is dragging you down then it's better to cut the ropes. Just remeber that everyday you wait is making it so much harder.
Best of luck to you Janniebug!