Welcome,
My mother is my functioning "A", she has been drinking for 60 years, yes, 60 long miserable years. She is 81 and still drinks.
I have gone through several times in my life that I had to cut the ties that bound me. One for 4 years and once for 10 years. They were the most peaceful years of my life. I re-united with her 5 years ago, and off to the races I went.
I set my bounderies, if she steps over them, I retreat and retrench. She is better with me, as she knows, if she pushes too far, I'll close the door again.
And, I will.
I agree with others, don't let the guilt consume you, or, lead you to making a
bad decision.
He has lived his life as he has chosen, so must you.
My Best,
Dolly