My mother is very similar too. As adults, it frustrates all of us, that she has "selective memory" on many many things in our lives. She will deny things, and portrays herself as an amazing mom... (divorced from my dad long time ago)
I tried killing myself as a teen, and when she came into the hospital, both my arms were being bandaged up and all she could talk about was her bad day...WTF?
She tried to take my children away from me. I ended up with custody of my younger sister when I got older.
She would teach me to steal. Drugs/selling/booze and men, were all in our home...
She got drunk and seriously damaged her truck. When my son borrowed it, well, it literally fell apart. He destroyed it.
She denies it all. In her eyes, everyone hurts her...everyone uses her.
As adults I have chosen to avoid her. If I see her at a family event, I will say hi...but I am no longer going out of my way to be there for her. Heck, she got married and didn't tell me until 2 wks after the wedding..!! (I might cause problems! I lived 18 hrs away!)
My adult children, both rather not be around her. They are polite when she is around, but are prepared for her verbal abuse..and are ready to bolt. They are old enough to make their own choices.
My younger children miss her. When she is sober, she is great to them. However, I have to constantly be careful. She will make comments, to them... "is your brother nice to you?" If my DD says "no", then she claiming abuse... She will watch how I am with them...guarantee she says, "you favor one over the other, and she should take neglected child to live with her! etc. So, I don't trust her with them.
My sisters understand why I don't want to be part of her life....I don't have to be subjected to her abuse. My children don't. I don't "Need" her in my life to be happy.
She will randomly send me verbally abusive messages on facebook. So, I blocked her.
Just because they are OUR MOTHERS doesn't give them the right to treat us badly. It takes so much more to be a mom, than giving birth.