I finally cut contact with mine. The final straw was when she once again ruined my Christmas by trying to pick a baseless fight with me. That was when I realized she'd never be happy no matter how far backward I bent over for her, and I was just fucking sick of my Christmases being ruined. (Among a thousand other things.) It's been hard. I feel guilty a lot, but the relief of not seeing her is so freeing it's incredible. I used to feel like I was drowning in the bottom of a well around her.