Hello jeb, I also want to post a warm welcome to the Parenting board.
I am so sorry it's been such a stressful roller coaster for you so far with your daughter. We have all been on it too... .
The fact that you are not talking right now must be so very painful. At the same time, it can provide you with much needed peace, time to educate yourself better on the disorder and the ways you can protect yourself better from her abusive behavior, and a breathing space to regroup... .
It's wonderful you have already started reading, and it also looks like you are in therapy? - Those are both very helpful steps on the way.
When she does finally make contact, the same pattern will repeat itself and I will once again be hurt (I feel like I wear a sign on my behind that says 'kick me'. I have bent over backwards for her helping her out and supporting her emotionally but I don't think I can take it any longer.
I am so sorry... . There are many members that come here with the same dilemma. They have helped and helped, and they only get hurt back... .
I have some good news for you though - there are ways to protect yourself from the abuse, and that is very healthy. Also, if you change the way you act (and it looks like you have already started), your daughter will have to adjust to that and find different ways to act herself, and the dynamic of your relationship may change... .
Welcome again, jeb!