hey hurricaneJ
welcome to the forum!
My daughter displays characteristics of narcicisstic behavior, yet many things she does also resemble borderline personality disorder. She fluctuates between hating me and wanting me out of her life to valuing my opinion and confiding in me with some of the issues she feels she doesnt know how to handle on her own.
I think you made a good call - that fluctuation I think is familiar to a lot of us.
Its really painful to feel like someone you love doesn't care or is being intentionally mean, how are you doing through all this? Are you able to take care of yourself some?
My guess is that your daughter is suffering too, even if she's showing it by really impossible behaviors. Sometimes a combination of letting go a little, realizing we can only control ourselves, and then using the skills that have been shown to work with other BPD sufferers to try to make baby steps, can lead the way out of this really deep painful pit. Have you taken a look yet at some of the books and videos on BPD? The links on the right are a good starting place, like the ones on validation. I don't know if you've tried some of those skills yet, or how they worked in your relationship? Did anything you tried so far help at all?
If she is still sometimes confiding in you, she must know that you still care about her, and there is something to build on. Is there any small thing she does that is something to build on, anything that you can recognize even if it is very small?
It sounds like you have worked very hard to help your daughter - for me it helps me be at peace if I know I'm doing my best, even if the result isn't what I'd like.
You've come to the right place - its a journey and its easier to share