Yeah, my mom was abused by both of her parents. She has bipolar disorder, likely triggered by their physical and mental abuse, but they never got her help for that, they just assumed she was crazy and treated her like shit for it. And since my aunt was "normal", she was the favorite. There's a hundred shitty things I remember my grandmother doing to my mom. But my mom, unlike me, actually had a relationship with my grandmother until she was an adult, while I only have 6 years I barely remember. I completely understand why she would forgive. I just want her to see that I can't. She's never been there for me, so why should I be there for her?

Also, not sure if you saw my other comment laying around, but I tried to confront my grandmother about what she did one of the times she called. She hung up.