It is very common for the other parent's family to be cast as horrible and the other parent pressured to increasingly disengage from them.
In my case I was married for over a decade while my spouse developed BPD behaviors with periodic rants and rages. I didn't know much about personality disorders nor how severe and impacting the acting-out ones (Narcissistic, Borderline, Antisocial, Histrionic) could be. I was clueless and hoped that if we had a child, then she would be much happier watching our child discover the joys of life. Reality check. As soon as our child was born, there was a divide between us. I thought she felt she had to choose between me or her child and I lost. Then it worsened when he became a preschooler, the same age as when her stepfather entered her life. I started getting compared to that abuser. It was only years later that I have since concluded that her Family of Origin (FOO) childhood environment resulted in her perceiving me as a Father figure rather than as a Husband. (Perceptions, feelings and moods mean more to pwBPD than facts and reality does. That part of the reason why BPD is so very intractable and difficult to treat.) There was no way I could "fix" that. Our marriage imploded just as I learned about this site.
While initially our friends were rejected (or they stepped away from the dysfunction) it soon expanded to include my relatives, even my parents in their 80s, and eventually me as well.


