friend...HELP!!?

I've been friends with this girl for years...but she gets a little annoying sometimes.First of all, she's really clingy and wants me to hang out with her whenever she sees me on aim. Even if I said no, I can't come over, she still wants to hang out and wants to know if I can hang out later or if she can come over.At school, she always complains about everything (and when we hang out) wrong in her life. I told her that she complains way too much and should just enjoy her life...all she does is shrug and say:"Yeah, but"and keeps complaining. One thing she complains about is one of her friend being clingy. I feel like she is being a hypocrite, since she does the same things herself. I don't like hanging out with her because of this reason. Sometimes I think her complaining rubs off on me and I start complaining about little things in my life too. I find it really annoying and when I take time off from hanging out, it seems to go away (complaining disease). What do I do?? Help...I don't think talking with her helps either, because she doesn't listen..

I want the 30 seconds of my life I spent reading this back.