I second the suggestion to let go of expectations that will continue to hurt you. Of course you do not deserve the treatment you have been given. You deserve better, and the challenge now is to create your future with people who will give you better. At present it is not your AC. I have had to come to this realization, too. I've found a couple of young adults close in age to my daughter who want my mentoring and enjoy having a reciprocal relationship with me.
I also found that I was making my daughter's story into my story, thereby reliving past hurts and the drama of her life. My goal now is to move on and create my own story apart from hers. Hope this helps. Warm thoughts to you