Thank you all for your support, and words of wisdom.
I agree that taking a step back from the situation is probably best for my serenity, and that is what I am doing.
I really wish I could leave them to themselves completely,.
As both have some dementia—hers is age related, his is drink related—i feel some responsibility to my parent to make sure she is safe in her home. My other sib and I pay her bills, fix what breaks, and I buy her groceries.
Beyond that, however, I’m better off out of it.
It’s just a crap situation, that’s all.
Thanks again. You all are the best.