I agree- it is vile. As an adult, I could rationalize that she was mentally ill, but that doesn't change how it feels to hear that. Just consider you spared your children from hearing her say things like this to you, and possibly to them.
This is projection and from victim perspective. If she's feeling hurt at the moment, she perceives you as the cause of it. She's saying vile things- which is projecting her feelings at you. That doesn't make it OK to do that. It's a dysfunctional way of managing her own uncomfortable feelings.
Will your ex realize her wrongdoing one day? It's not possible to really know that. Projection, dissociation protects them from shame, and it's possible she isn't capable of realizing that. Sometimes their own sense of self is so fragile, these defenses won't allow it.
You are in the thick of it now and while it's understandable that you are thinking about her actions and words, really for her, it is sad that this dysfunction affects her relationships- but you didn't cause her to have BPD and you can't fix this for her, even though you had wished better for her. But you can preserve your emotional safety and that for your children. Whatever she thinks or says of you- one can not change another person's thinking. It doesn't define you.


