Anybody have any thoughts of how lack of empathy develops? I was raised by a mother with Borderline PD and experienced verbal/emotional abuse although no physical abuse. I actually over-empathize with animals and other people; I hate the idea of anybody or anything being in pain. However, I'm often attracted to people who have a lack of empathy.

I was wondering if anyone wanted to share their personal theory about how this comes about. Is it present from birth? Is it so much abuse and suffering as a child that you worry only about yourself (because there's no one else looking out for your best interest)? Is it so much pain from childhood that you just shut all feelings off? I'm curious on hearing anyone's thoughts.