❤.M.
You do what you feel you can with setting limits & boundaries for yourself.
Instead of a visit, try calling often, sending cards & letters, a care package
once in awhile.
Go see a counselor for yourself to see what you can do, what you shouldn't do, how to keep a distance & still be a family member.
Maybe google counselors in her area & have your hubby gently encourage she make an appt to talk to someone. That's about all you can do.
You can limit visits to a few times a year. Can you fly next time? Get there faster.
Check out a book from the library on BPD to read up on it yourself to you
will have a better understanding of the illness, how to help, what not to
do, what is to be expected, how to support the famly member, etc.
When you listen to her speak, ignore what you find to be outrageous
info.
Take care of yourselves. Do what you can. Set limits. Know you can't
fix her illness but can be knowledgable and aware of what it's
limitations are.