Two-Sided friend, pisses me off... Options

[Paradox of Life]

Okay, so here's the story and I'm only seeking advice from the people who have read this whole thing. And do NOT say "DUMP HER!!!"

So, I've been having a small dilemma. There's this person that I've been friends with. She was really really nice 2 years ago and we were inseperable friends, but in 6th grade she began to change. I suppose the pressure was getting to her and she felt like she needed to impress everyone around her and be better than everyone around her. She was being really competitive with me all the time and the truth is, she is not good at anything. I really really don't want to sound like a harsh, conceited loser, but she is bad at everything she tries to do. But that's partly because she has so many illnesses and it's hard for her to do anything (let's put it this way; she's not the greatest looking or functioning person you'll ever see).
Plus, she had no one to support her except me because people would always make fun of her. So I decided to just stay friends with her even though she was constantly putting me down, never complimenting me and always competing with me. Once she asked me what I made on this 50 question scan tron test and I replied, "A 96" and she said, "Oh. Well, I made a 97."
But finally, her attitude just got on my nerves, so I told her to just leave me alone. Obviously, she did not take this well and would treat me as if I were some kind of virus. She drew pictures of me burning to death and told everyone about what I had supposedly done to her. She would purposely talk to other people loudly in my face and laugh to show me that she had friends. I was then considered an absolutely awful human being.
I finally came to terms and apologized to her. We're friends again now. She told me that when I wasn't with her, she had no one else and started cutting and thinking about suicide. I am really careful now about what I say around her. She's not as obnoxious as she used to be, but she is still very competitive. I don't want to confront her about it because she takes things very seriously and never forgets them.
One thing that's bothered me the most about her is that she thinks that she's popular and awesome and everything when NOBODY LIKES HER. They consider her a leech. She thinks she's friends with the popular people and that she knows everything when they hate her guts and want her to leave them alone. And obviously, she's trying to steal my (future) boyfriend and all my friends. She always "hangs out" with them and thinks she's part of the group when they all are completely ignoring her. She enjoys telling me at lunch that she's glad she has so many friends. But then, they tell me (I'm true friends with them) that she's annoying the hell out of them.
I want to tell her the truth, but I don't really know how much help that's going to do her. She's really sensitive. I wish she was out of my life, but I can't even do that because who knows what would happen? Maybe she could just support herself on what she wishes she was. Just right now, I don't feel like she's being a good friend to me. What should I do?

[upf147]

well, at my school, they have those programs where you report a friend in need....yea, if she cutting when you werent talking, id get her some help, there is something seriously wrong there.

[Hiphop d[-_-]b]

Tough situation. I think it would be best, if you really did jus tell her whats bothering you. But break it to her gently since shes sensitive. She wont learn to change, if she doesnt know what needs to be changed.

[__modish]

That's horrible the way she's treating you! If it was me.. I guess I'd try to introduce her to some other people so she can be friends with THEM. If she talks bad about you, most people probably understand that none of it's true, since they don't her.
If she's cutting, then you should try talking to her parents, because that's a huge problem, and even if you don't really like her much anymore, it would show you still care about her, and her parents will probably be really grateful that you brought it to their attention.
well, that's just what i'd do :)
g'luck!

[ParanoidAndroid]

I'm going through the same stage as your friend except I actually am good at tests and grades and I know everyone in school hates me...a lot... Just tell her the truth. Have a talk with her, if she's too weak to handle a reality check and starts cutting again, tell her how you feel for her as a friend, how you wish she would just stop trying to be something she's not. It's so annoying when you have to live a perfect life in an imperfect body and an imperfect society. So whenever I see something so perfectly ordered or cleaned, i would do something to ruin it cuz the way it was perfectly placed was haunting me! I think your friend is just trying to be perfect and letting puberty get in the way..she needs to be more confident