I am talking about someone who has been diagnosed with BPD but also shows narcissistic traits. I do understand some of the symptoms/behaviours of both conditions can be similar whilst being two different disorders.
It's more curiosity than analysis, maybe a bit of both. I'm trying to understand why this person regularly lies about things that are easily proven to be untrue. There does always seem to be an element of rewriting history and changing the version of events in order to appear favourable or 'play the victim' to gain sympathy or attention whilst painting others who they perceive have wronged them in a bad light. The way of thinking is very black & white.
I would like to give this person the benefit of the doubt and assume they genuinely believe in their tales and therefore should be pitied because they are suffering with historical and ongoing delusions. Another interesting element is when someone has rehearsed their story and retold it so many times they actually 'remember' their version and become convinced that is how things happened. I will say some of the lies lean towards pathological.
Pathological Liar vs Compulsive Liar: What is the Difference
'People with BPD also have a tendency to think in extremes, a phenomenon called "dichotomous" or “black-or-white” thinking.3 People with BPD often struggle to see the complexity in people and situations and are unable to recognize that things are often not either perfect or horrible, but are something in between.
Dichotomous thinking can lead to "splitting," which refers to an inability to maintain a cohesive set of beliefs about oneself and others. Because of these extreme patterns of thinking, people with borderline personality disorder are prone to slip from one side to the opposite side in their thinking.
For example, they might one day believe their partner is the most wonderful, loving person in the world. The next day, they may think their partner is evil, hateful, and contemptuous.'
Any thoughts appreciated.