Now I have alarm bells go off if I think I am dealing with a disordered person and get out of the relationship before it even becomes one. I pay attention to how I feel before and after seeing someone and if I feel worse, pay attention to that. If things they say don't make sense or seem to add up to the truth, or they have some many unbelievable stories it is impossible to keep track of them, or there are oddities in their behavior, I don't just let it stride. I'm on active surveillance for not letting disordered people in my life because of the harm that I have experienced. It is not so hard to stay away from disordered people as long as they are not family members, in which case that is a very tough situation.