Have you ever been in a relationship with someone where you’re “walking on eggshells”? Is someone new in your life suddenly your best friend? Do they instantly turn on you? They can be a borderline personality and particularly difficult to have a relationship with. Denise and Mark discuss what borderline personality disorder is, the key hallmarks, what causes it, why it can be so hard to detect, and whether they can ever be self-aware enough to understand how they are behaving. Most importantly, what does it look l like to divorce one?