relitive with BPD

I have a brother who has BPD, He was diagnosed with it and now acts like he never was told about it.
He has alway had a fetish of having to buy or apear to have the best of what ever it was he had. He would rather not have something than apear not to have the best. I.E. 60$ aftershave,50$ shirts,75$ whiskey,1800$ tv. When more inexpensive would do.
He has hooked up with a woman whos father has money, or so he tells me. I have no reason to think otherwise as of now.
He will call me just to tell me that Donna graduated from college, she is 36 yo. and her father bought her a new Honda. He never calles to say what is going on in your life, what do you want to do are doing ect. I am in a transistion in life and after selling a business am thinking of going to college, He never askes and when I try to talk about it he does not say much, like I am infringing on his "area" of life or something.
I know him very well and can tell you that he has a horrible temper, He is hiding his real self from her, and she seems a bit needy, she is a devoted baptist and he seems to become who ever he is around. He was an atheist and now totes a bible believe it or not.
I wonder how long it will be before she does not give him the feeling of superiority he so craves?
She comes with baggage, I.E. 2 kids 5 and 8, He has yelled at the youngest who he says is a "little girl" He told the kid that if he did not quit whinning he was going to go to wal-mart and buy him a dress to wear. His girl friend backed him up. I was a bit supprised at this, this was a blatant devaluation of the child. He is someone I would not trust with any child, and our brother who has kids will not alow him to sit with his kids.
I am thinking of moving to Wichita with in 20 miles of him, but because of work and we want to be near my other brother in the same city, who I do get along with very well.
Any help in understanding how his brain is working and what to expect, would be appreciated.

I have been told that it would be best to just do LC or NC, I would prefer Limited contact but he is very presistant. Once when I did not answer the phone when he called he left a message to my wifes voice mail when she asked please leave a message, "I dont want to leave a message bitch"

I do not know what to do, Every time he calles he makes me feel bad about my self, I do not know how else to explain it, or he calls to bitch about politics or what ever is ticking him off at that moment. Everything is black or white, he hates it or he loves it.
He has had a couple of other girl friends and when he is going out with them they are the smartest most wonderful person in the world, He has even yelled at people to never say this or that around this person or he will kick their ass, and they said nothing.
Then when they are broken up they are the most evil stupid, drug using, bitches in the world.

Thanks for any real help or ideas, Just trying to get a grip on my life with this person.

Wow! I can only imagine what you must be going though. It sounds like there isn't a whole lot you can do except take care of yourself. I understand how hard it is to love someone who cannot be available to you. I hope you have others who can meet those needs. It takes a lot of energy to support someone with Bipolar disorder. Maybe you and your other brother can be support for each other. I wish you the best of luck.

me