How I love your posts omo! ;-)))
Borderline Personality Disorder comes from the DSM, which is a bunch of BS so that psychiatrists can call themselves doctors.
The only thing I like about the DSM is that in version 1, it called homosexuality a pathology, hehe.
Anyway, about BPD...
This is a terminological name and quite frankly, it's total BS.
I personally subscribe to the anti-psychiatry movement, which is completely against the trauma inflicted on humans by modern day psychiatry.
I hate these made up terminologies for something much simpler.
NOW, to the real story...
Most consciousness of human beings is based on EGO. This is a pathological entity that arose in our consciousness sometime (it had a date of birth) in the past generations of humans.
The idea behind ego is that it exists inside each person and takes over the mind of each person. It convinces the person that if they compare themselves to others and feed off the pain/pleasure of being better/worse, the ego will grow and grow and grow, so that the person is no longer themselves, but more of this pathological mind construct called ego.
Gradually in some humans, this need to constantly grow the ego in one direction or the other becomes an almost permanent dysfunctionality, whereby another human being can't be with that person without them creating circumstances that perpetuate ego (you're right, I'm wrong and vice versa etc.).
This is ego. This is why almost all mind pathologies exist. Everyone almost on planet Earth is trapped in this state of consciousness, which makes them try to protect or defend their mental position.
It has become so out of hand that this condition has diversified and invented new ways to disguise its mechanism, but really it's always the same result - to divide human beings into separates that like/dislike eachother and cannot live in harmony.
BPD = severe egotism...
How to not perpetuate someone's BPD?
Disarm them with charm...Always agree with them...Always acquiesce and don't perpetuate the energy they create. It's like defusing a bomb that is about to go POW, but instead does nothing.
Be the smart one and disarm the ego nature with buddha nature!
However innumerable sentient beings are, I vow to liberate them all...(!)
Love and whatever else,
Scotty