Thank you both for the very wise counsel. It is clear to me that I have zero control over this situation and most others if I am honest with myself. Over 10 years together, I have rushed to help or save something that clearly could not be saved by me. The conflict it creates leaves us both distant, and has resulted in my children removing themselves from her life. They are adults and feel it is in their own best interest to stay away. It doesn't seem to get any easier. Good to hear that I am not alone. I have been working with my own therapist to figure out if I can do this for another 10 years. I'm not sure that I can. Thank you for the reply.
You absolutely can do this for 10 more years...you simply remove the toxic patterns from the interactions and place your own self-worth above hers. If she gets ugly, you leave or hang up or block further messages. The abusive stuff instantly stops and you have the power to do that at any time.
Now, pushing back and asserting boundaries will make things worse before it gets better...be prepared for that because it's 100% normal. I mean, who actually likes new rules in our lives? So she'll push back and that's when you must state that you're not arguing or accepting abuse. If it doesn't stop, you walk away. And you do this every time until a new pattern forms.
At the same time though, you can still be loving, caring, compassionate, etc. I'm not saying to be mean or ugly. I'm simply saying to teach right from wrong like you would a child.
When things are normal, that's fantastic and you can have fun together. When things are ugly, you ask them to stop and if they don't, you withdraw. And if they escalate, you dial 9-1-1. Doing this process over and over again makes your intentions crystal clear...you're not going to walk on eggshells anymore. And maybe you're the one that's cut off for awhile. That's fine though, it's still getting the boundaries across and refusing to be abused.
I hope that helps!