Ok, I am new to this site, but out of sheer desperation I have found it and am hoping for some insight. I have stepchildren. Several actually, and no biological children of my own. My husband's ex wife with whom he has 3 children is PSYCHOTIC. He has a child with his first wife and there are no issues there. She is fine. However, the 2nd wife is nothing less than mentally ill. I am pretty sure she has Borderline Personality Disorder. she may be a sociopath. She has no empathy for anyone else, and appears to think the world revolves around her.