There's one of the best evidence-based treatments of four borderline personality disorder, something called dialectical behavioral therapy. People with BPD have very black and white thinking, right? They split. So in the experience of people with BPD is often that if you are mad at me, that means you hate me. If you're having a fight... ask questions like what do you think about whether I love you or not?" And everyone should be learning this kind of stuff," she says.