Why does she just wants to be friends?

Sounds like she doesn't see you as someone she could be romantically involved with just as a friend. If she's hurting you more then helping you then you should break off the friendship its just as simple as that because a friend is not supposed to make you feel bad about yourself!

okay, about the flirting:she is probably just being friendly and/or could have been drunk.
as for why she doesn't want to be with you, in al honesty, it sound like she's a lesbian .
this girl has been treating you mean, so I say ditch her of the bat ASAP

I think she finds you attractive, but maybe not boyfriend like. Or she could also want to keep up on the side because she likes you, but doesn't want to be tied down.

sounds too painful so distance yourself and make other friends.

If you can't be friends with her - without getting hurt, end it. You don't have to put yourself through that.

She is not attracted to you, which is why she placed you automatically in the "friend zone". The thing about this phenomenon is that your vibe is what caused this in the first place. She never saw you as a potential relationship material or sexual partner material because you never put out that kind of vibe. You have to put out a vibe that you are capable and deserving of that. That's why nice guys always fall into the friend zone. I used to be an overly nice guy, and I thought that by being a good listener and being "proper" and "not offending her with sexuality" was the way to go, but it is not. So any time a girl you want tells you let's just be friends, simply tell her, "No thanks, I already have enough friends," and move on. Once you fall into this zone, it's hard to get out, and if you stay there, she will just use you as a shopping buddy, a therapist, or whatever. By refusing her offer to be "just friends" you are automatically places yourself above the friend zone (thus, putting out the vibe that you respect yourself enough to not allow yourself to be thrust aside like that). If you want you can message me for more on all this, since there's not a lot of room to write everything. :)

dude, she's a tease she gets off on letting you suffer! what you want you can't have! be upfront when she's sober and just lay it flat out for her. Stop screwing with you or tell her to f*** off! Once you tell her off, the games over! she either wants you or she dosen't ! chances are she's not going to be upfront and she's going to keep f***in with your head for her own personal pleasure! unless you make a stand! don't fall into her mind games!