Relationship with narcissistic parent?

Parents were divorced when I was six years old. My mom took me and my sibling to live somewhere else. She spent my whole childhood bashing my dad and leaving us alone by ourselves so she could read a book. She dropped us off at grandmas three or four times a week days and nights who went off doing other things while we were left alone. She hid us in a closet so she could ignore my dad when he came for visits. She would have me sit and watch scary shows with her even though I said stop and cried and got nightmares. She was emotionally abusive, neglectful, and unresponsive. She still doesn’t know what she did wrong and doesn’t admit to anything and everything is my fault because I don’t want a relationship with her. I am not disrespectful but I do ignore her. Yet she finds fault in that and goes around to her sisters and mother complaining about me and comparing me to a cousin who should be in jail.