I read your post, i'm sorry you feel this way about her. Maybe you should just understand her problem, she sounds like she has some issues, not your fault but i think you should still be there for her. Stick it out and maybe someday soon or later she'll be able to communicate better because of you. I'm sure secretely she is loving you to some degree but just can't seem to get a grip on it. I was like that until i realized i was putting people in a bad situation and learned from it, i am better able to communicate because there was someone there, my mother and father whom i hated for getting me help years ago, but am happy now in the long run, i needed the help but wouldn't accept it because i was sick.You can just be a sounding board for her, I'm sure she appreciates your hep, maybe just can't show it yet-it's a long road ahead of both of you if you want to continue helping this person. I say in the long run you should continue to help.