Edited by MNHQ at request of OP.
https://www.mumsnet.com/talk/amibeingunreasonable/5445403-aibu-to-give-my-mum-an-ultimatum-about-her-drinking?reply=148582638
My thread from AIBU giving back ground
My mum and her drinking had a terrible affect on my childhood and in a lot of ways led to my own alcohol abuse 'period' - but I am responsible for my own behaviour.
Anyway, it seems an ultimatum isn't the way to go. I have been working on what boundaries I need and it sounds a lot like an ultimatum but this is what I have:
I need to talk to you about something important. I want you to know first that this is coming from a place of love and worry. I am really, really worried about you. Your drinking is doing serious damage to your health. You have type 1 diabetes that was caused by alcohol, and now you’re showing Parkinson’s traits that are also linked to drinking. Watching this happen is frightening, and I don’t want to see you get worse.
This weekend really affected me. I’ve been in counselling for a full year now, working through everything from my childhood, and I’m trying so hard to stay stable for myself, DS and the boys. When you didn’t come up, it really impacted how I felt — and it really affected DS too. It isn’t the first time recently, and I can’t keep going through this. It’s not something I’m able to continue with.
I’m not giving you an ultimatum. You’re free to make your own choices. But I need to put some boundaries in place for my wellbeing and the boys’. I can only have a relationship with you when you’re sober and getting proper help. I can’t be involved while you’re drinking.
I think the kind of help that would truly support you is in-treatment rehab. That’s the level of support that would make the biggest difference for your health and your life. I’m not forcing you, and I’m not telling you what you have to do — it’s your choice.
But I want to be honest that rehab, or some form of proper treatment, is what would allow us to have a healthy relationship again.
I care about you, and I’ll be here for you when you’re ready to work on recovery.
But until then, I need to step back.”
I want to give her a chance to change. I really want her to go to rehab. I don't think she will. But I can't put myself through this, and I certainly will not put my boys through it