My daughter is an absolutely beautiful 23 yr old with a beautiful voice and has so much to give. All of her life she never gave any indication she was gay. When she was 18 her father and I went through a difficult divorce and during this time she seemed to turn to drugs and another girl for support. The two of them have gone through their drug stage and done many things that have disappointed the family. At this time they seem to be drug free for the most part with the possible exception of pot. They live in a house that they share with a young man. I have supported her emotionally and been there for her through these difficult times yet she continues in this co-dependent relationship with this girl. Even though I do not beleive her to be truly gay I could except it if I felt she was in a healthy positive relationship. This relationship is abusive and dependent. Even if this girl was a guy I wouldn't like her.  
I love my daughter with all of my heart, I continue to pay her school, insurance, and car. Am I just enabling her? Should I tell her I am cutting off the finances unless she gets away from this girl. It is not the sexuality, it is the bad relationship. I think she has gone to someone that treated her as her father treated her, dominated and controled her.  
My heart is broken over this. She is doing well on all other fronts, well in school, well at work, however, her social behavior when in the presence of the girl is backwards, whereas when she is without her she is the old daughter we know. Even her sister dislikes this girl and the way she treats her sister. She agrees when alone they get along fine but when in the company of the other tension exist. None of us knows what to do or how to handle. We even go to counseling and she refuses to discuss why the relationship exists so we focus on other issues. 
I need someone to help me understand how I should deal with this, I am very confused.