Personality Disorders Support Group
Personality disorders form a class of mental disorders that are characterized by long-lasting rigid patterns of thought and behaviour. Personality disorders are seen by the American Psychiatric Association as an enduring pattern of inner experience and behavior that deviates markedly from the expectations of the culture of the individual who exhibits it.

Do not try to get her out of feeling what she is feeling.....
Its called validating speech is important when dealing with people with BPD.
Read "Walking on Eggshells."
Hugs.
Which makes difference since in the last 10-15 years they has been a lot more understanding of BPD.