This girl sounds quite emotionally troubled to me. I don't think it's all due to ambivalence about her sexual orientation. She is coming from a non-stable home situation where I don't think she got what she needed ftom her parents. She may well spend the rest of her life failing to get over that.

Right now I think you'ld be wise to just let her go. Otherwise, this swinging back and forth between being with the gal pal and being with you is just going to keep on going, with more and more drama and her just getting more confused. Her drinking isn't helping the situation, and that's not going to stop anytime soon, either. She is needy at a level you can't fulfill. Like I said. This goes back to her relationship with her folks. I think she is looking for what was missing from her parents, and neither you, nor her female lover, are going to fulfill that. She seems to be embracing tragedy with both arms. Feeling tragic is the script she seems to have written for herself. Stay in her life, and she is just going to make you part of the tragedy.

At the very least, tell her it's best you two leave each other alone, while she's working out her issues. (TBH, I don' t think she is ever going to work them out, or, at least, not for years to come.) Then move on with your life, and don't put yourself on ice waiting for her.

You'll always have a soft spot for her, but I think she belongs to your past . . . not to your future.