Motherissues because you're a rational person operating from a normal psyche. Your mother isn't.
If you try to get revenge it won't work, she'll flip it around to play victim and you'll be cast as the aggressor. She's already gotten away with her behaviour because literally she's already done it and it can't be undone. There's nothing you can do now to apply consequences for that behaviour except go NC.
Going NC isn't about punishing them it's about saving yourself. Anything that is about punishing them won't work because they'll never accept they did anything wrong so it won't feel like punishment to them it'll feel like an unprovoked attack.
I understand about you wanting to give a reason for NC, any rational person prefers to know why someone is exiting their life, for closure. The irrational person won't understand though, no matter how many times you try to explain your reasoning, they'll never get it. Because to understand it they'd have to accept they did something wrong and they won't ever accept that.
She already knows the reason, she was there, doing those things during your childhood. The information on the reason is within her. She could go to therapy with her question of why and her feelings about it, she could explore your relationship and what may have gone wrong, coming to the conclusion she was a bad mother and that's why. But she'll never do this because it wouldn't cross her mind to self reclect in this way, to consider that she might be the problem. All she'll do is blame you and think you're unreasonable for going NC.
You want to tell her a few home truths as a parting shot, I get that, but what makes you think she'll believe you?
Any reasons you tell her just gives her an opportunity to pick them apart and tell you why she thinks you're wrong. That will inevitably cause you further pain. And it won't give her closure because she'll never accept your reasons. She'll go around telling people you've dropped her and she doesn't know why even if you've literally told her why, because she can't accept that reason as the truth. All you'll have achieved by confronting her is to have put yourself in a situation where you experienced further pain.
What she thinks or feels about the NC is none of your business, it's her business. You don't need to try to control that, be involved in that or take responsibility for that.
Good luck with whatever you decide to do though. 🍀
Dogaredabomb I used to work with a bitter woman. I don't know what happened to her but someone down the line must have hurt her. It coloured her entire life in a negative mindset. One time a brand rep left us all gifts after a meeting. They were identical. She was last to come on shift and I was first to greet her. I told her about the gifts and said hers had been left in the office. I was expecting her to say "fantastic! I'll go put it in my locker now" or similar. Nope. She pulled a face, said grumpily "I suppose I've been left the shittiest one". I imagine in a lot of people that could provoke a negative response in return, especially if it's the 100th time they'd experienced her negativity and they were thoroughly fed up of her. Going through life with this type of attitude would have turned most people against her, caused them to avoid her and reinforced her idea that people were all awful. She had no friends at work and I could see why! I doubt she ever realised it was a self-fulfilling prophesy.
Cheekysnake you don't want to hurt anyone's feelings, but in taking responsibility for their feelings you're hurting yourself. It's not cruel to protect yourself from harm. I set an alarm for 20mins with people like this before the call starts and I end the call when it goes off, interrupting them mid-sentence if I have to. I don't take their calls when I'm busy, or winding down for bedtime, or if I've had a stressful day myself and need to decompress. It's ok to have boundaries around calls. Phone ownership is for your convenience, not so others can access you 24/7 for their own convenience.
That's shocking wondering. What a thing to say! I hope aunt's son sees through her and tells her to get lost. He doesn't need that hassle while he's grieving.