cantstopeating1
I'm guessing you want to binge to numb the pain and/or punish yourself. I think that's a normal reaction - we have multiple ways of doing it, yours is eating.
I'm not going to tell you not to. You do what you want, because it's your body and you are in charge of what you do with it - I don't mean that manipulatively. I ate 8000 calories a couple of days ago, then I carried on. I'm not judging.
The thing is the one person in this scenario who doesn't deserve to be punished is you. The one person who doesn't deserve to be hurt is you too.
You can't change your mother's behaviour. You can't change what happened to you. You can change some things though. You don't need to be in contact with anybody who spends time with your abuser. You have that choice. You have that right. You may think "But she's my mother". You're half-right: she birthed you and she raised you. Yes. But mothers are supposed to protect their children. Fiercely. Mothers are also not supposed to harm their children (like staying in contact with their DD's abuser). It goes against every fibre of actually being a mother.
What many people who have mothers who do despicable things (what she's done is despicable, in case you think that's OTT) to them crave is a combination of their "mother's" acceptance, their "mother's" admittance of guilt, feeling wanted by them, a heartfelt apology and/or for their "mother" to be the person they wish she was. I don't know if any fits you, but if so, welcome to this part of Normal!
Binge or don't, but look at it longer term. It's ok to not have a "mother" who has carried out one of the deepest betrayals imaginable to their daughter in your life at all. It's ok to reduce interactions with her to the minimum. Sometimes our mothers genuinely don't know when bad things happen to us, but when they find out they leap into action, they apologise to their daughters for not knowing and not protecting them; they don't spend time with the abuser.
Take care of yourself. You don't have a mother who takes care of you, so you need to step in to that empty place. Protect yourself from people who harm you. It's not mean, it's not rude, it's not ungrateful, it's lifesaving. You're allowed not to have people who repeatedly hurt you in your life. More than that, you deserve it.
I'm sending you a massive, massive hug. And a hand hold for the rest of the day.