Great questions... .like final exam questions. I'll give it a shot.
Why does the pwBPD believe that the Non is causing his/her pain, when the Non's actions often have nothing to do with it?
Ummm... I think it is better to look at it this way: They believe the cause of the pain is "external" vice "internal" (and within their control). Shame, foo influence and lots of other factors have likely trained them to blame others or look outside themselves.
That is their normalHow does abusing the Non stop the pain for the pwBPD? Why does the pwBPD think that abusing the Non is an appropriate response to his/her pain? Maybe that is the same question in different words.
Ummm... .I'm going to say it doesn't stop the pain. However it may provide a temp relief valve or act somewhat as a salve that wears off. So... .they believe they are fixed... salve wears off... .they now have "totally new pain" and go back to how it was fixed before.
As long as this fix works they will keep going to this Why change something that works. Especially when it's not your fault... .all you have to do is "put up" with this schmuck who is causing your pain.
It's appropriate because it works. Emotion of the moment overshadows or is more powerful (in many cases) than morality. Ends justifies means. Plus... ."think" is likely the wrong word. I don't believe this is a deliberate "I'm going to be abusive"... thoughtful decision.
In this scenario, it seems like the Non gets abused just because the Non is the nearest victim, or something like that?
If you change this to "nearest
intimate victim" then I think you may have something.
There has to be intimacy, because then the pwBPD understands how to push buttons. Think about this... .a pwBPD walks up to a stranger and accuses them of having an out of wedlock baby with someone. The stranger flips the bird and walks away. The pwBPD feels like an azz and "gets nothing from it".
A pwBPD walks up to their intimate partner and says "you had an out of wedlock baby with that woman we met today in McDonalds." The non "reacts" and tries to prove himself innocent. And the back and forth goes on for hours.
pwBPD gets a "dysfunction need" met from this.
Again... use some RA. This is their normal. Being "healthy" is as strange to them as the abusive stuff seems to us.
FF