Ok. I have BPD. I was diagnosed in my early 20s. BPD people aren't manipulative on purpose not in the regular understanding of manipulating. What happens is that a BPD person is terrified, absolutely terrified about being abandoned, even if there is no abandonment taking place, it can be the perception of being abandoned that causes fear. A BPD person then goes into a type of panic mode, that they can't exist without that person in their life and that is why they do things to try and keep that person in their life, like self-harming to get the care and attention, splurging money to give treats to people, being reckless with money so the other person has to manage their money for them. It's not conscious manipulation, it's a primal fear. BPD people have an emotionally unstable personality (and in fact in the UK many psychiatrists now call BPD Emotionally Unstable Personality Disorder). The best way to explain it is that we don't have the tools to deal with handling emotions that a "normal" developed adult has. We are kind of stuck in that awkward adolescent stage where everything is a complete drama. Having BPD doesn't excuse soneone's actions. I know right from wrong. It doesn't mean that someone cannot control what they do. Typically a BPD person is aware of what they are doing, they may not be consciously aware that it is manipulative though.
I have the added difficulties of experiencing psychosis when extremely stressed or depressed. That is completely different to BPD. Having BPD does not mean you WILL be psychotic at any time. I also have a diagnosis of PTSD. Jodi does not at all present as having PTSD. She has no heightened startle reflex and doesn't go out of her way to avoid the alleged cause of the PTSD.