I just wonder if her BPD is worse with me because I was adoptive. She has never treated my brother like this in our lives ( except recently after my father died- but for different reasons). TIA for your help or advice.
I am also adopted. My mother is uBPD. It is my personal opinion that the behaviours of the borderline would continue on their toxic merry way regardless.
To be honest, I am rather relieved that she's not a blood relative. It would have meant less risk of any genetic inheritance for BPD into the next generation (if I had ended up with kids of my own).
It also makes it much easier to go "non contact" - less sense of responsibility for a parent - or even confront the woman over her abusive behaviours.
I am amazed that I maintained some sense of loyalty to the woman for so many years, just because she is legally my parent!
Having recently come to terms with just how abusive she really is, I no longer feel any last vestige of responsibility for her.
My mother always let me know I was adopted (i.e. not hers). Just another weapon in the armoury of the borderline's unceasing abuse and toxicity. If she wasn't picking on that, it would simply be something else.