Well I've had 5 hours sleep and its now 4am in the morning where I am (south africa).
Thank you for the input Sandi2. I totally agree with you, the WW is certainly a monster all of her own doing. I have become her object of resentment, holding her back from the life that she could be living. My mother believes that I must just let her go, she must move out and have her find herself. I fear that I will lose her forever if I do that.
I don't think that I fear her never coming back, rather I fear that I might declare that things are over and not give her a chance again.
As for her lies and lack of accountability, yes, I betrayed her for telling my mother what she did (apparently).
She is a stranger to me and I know that I need to treat her as one. But I do not want to deal with this dual personality - being stuck in "The Notebook" and "50 First Dates". I need to remove myself or her, and i'm going nowhere.
Just cos things are going right, doesn't mean that they were always wrong.