Don't play! Let her say whatever she wants and let it wash over you like rain - and wash away. None of it needs to stick to you. It can only take you time and emotional energy if you buy into it. Radical acceptance is accepting that she is different to you, and this is just "who she is".
I will admit being able to resist being sucked in most of the time, but then find myself being accused of being passive aggressive (i.e. silent treatment). If I fight back, then I am "mean." It's truly no win, and when the ranting about my ex, my kids, her coworkers, neighbors or world issue du jour, she won't stop until I jump in or some psychologically shiner object appears in her life (eg a friend has a "crazy story"
But welcome to the site! You say you've been lurking for a few years - good for you to post. Is your wife formally diagnosed? In therapy? How do YOU cope and look after yourself?
Yes. She's dx for about a year. HFBPD. One instance of DV against me. She tried online therapy. Quit. She was in 1-1 therapy for a few months after that with a psych. Quit. On various meds. Most didn't do much. Last one was promising and seemed to work for awhile but then the BPD behaviors came back.
One of her signature behaviors is lack of a filter on her mouth, especially in public. We can be anywhere and she will say the worst things about random people, their ethnicities (which makes zero sense as she is biracial), level of obesity, hair, facial features, etc. example would include sending me pics via text of someone at the daycare, "look at this typical stay at home mom. What a frumpy, fat, ugly person!"
Another is stereotyping people for behaviors she does herself. Example. My wife cannot park her car straight whatsoever. But if she sees another bad park job, she will say "look, Asians can't park because of their slanted eyes"
If i say "wow, that was pretty racist." She will say, "whatever it's true!"
These sorts of childish behaviors at our age really turn me off. I'm sure it was "funny" when she was 22 and with her girlfriends, but that was a long time ago
She has a few female enablers in her life who use her like the court jester to provide them entertainment. My wife is all too happy to oblige despite the obvious effects this has on our r/s