He's gone from an outgoing guy to someone who has no friends and no life outside his immediate family. He's gone from loving his extended family to seeing practically no one for years on end. Will he wake up from this nightmare? When will this nightmare end?
My dad's in a similar situation. My mother visits her relatives on a weekly basis, while my dad is only allowed to see his 2-3 times a year at family functions. The extended family has expressed that they do not understand how he can stay with my mother.
Your SIL sounds like she mainly displays Queen tendencies. (Her way or the highway, she is in charge/the ultimate authority, etc). My mother used to be more Waif with a side helping of Witch, but once I passed about ten she transitioned more towards Queen and Witch with the Waif lurking in the background.
The book "Understanding the Borderline Mother" has a section on the four main stereo types men who support someone with BPD tend to fall into. They are:
The Frog-Prince - someone to rescue & someone to rescue them
The Huntsman - someone who pities and protects them
The King -- someone of power and wealth (real or perceived)
The Fisherman -- someone to be dominated and controlled.
Now since your brother sounds a bit like my dad, let's take a brief look at the main characteristics of the Huntsman.
- Good hearted, loyal, principled, easygoing, hardworking
- Uses denial and avoidance to regulate emotions
- Derives self esteem from duty, honor, and service
Someone once said that the emotional highs of being with a pwBPD during the good times made him want to stay w/ his significant other even though the bad times were absolutely awful. (Don't remember who said this, it was years ago). That's one thing to keep in mind about your brother. If she's exhausting to you, imagine how bad it could be for him. Her drama might be all the trouble she can handle.
Have you tried keeping things low key? You probably have, but if you keep things from the stance of: 'I'm here if you need me, but I won't judge or make demands' it is possible that your brother could start viewing you as more of a support and he'll be less inclined to withdraw.
I know my whole extended family (both sides) lies to my mother about when they spoke to me and what they spoke to me about. Because they know that if they admit to talking to me for more than a few minutes, then my mother will get jealous and they'll have to pay for it.
his sole focus is not to disrupt the "harmony" they have which means seeing me the least amount possible.
If she's got any witch tendencies this is a survival instinct, or it could be his way of trying to protect his kids (I think you said you had nephews). When a witch isn't happy, everybody suffers... .
Getting back to SIL. There are a couple of methods that can make talking to someone with BPD easier if you are interested in trying to maintain a dialog with her to grant you access to your brother. SET is useful when the crazy things start to come out (The bulk of my reading is from 12 yrs ago when I first learned about BPD, so some of my information may be a bit out of date.) SET stands for Support, Empathy, Truth. Basically it starts with an I statement (ie: I want to help), goes to a you statement (ie: you seem to be angry right now), then ends with a truth statement (ie: It's okay to be angry, but it's not okay for you to take it out on me).
There are other threads that might help in workshops forums, though they tend to be more geared towards people with a parent/child/partner with BPD.
Hope some of this helped, though I rambled a bit.
SC