People are simply props to a narcissist. They have roles to play in supporting the narrative. Sick mum, son that she makes out to be a burden, elitist mean TORY brother, dear sweet WC grandad (MY GRANDAD IS DEAD!), Louisa is just Mrs J and SHE LEFT, etc etc etc
The narcissist speaks of people only in relation to themselves, and/or in a way that fulfils the desired current narrative. Even her dad, who is assumed to be able-bodied, financially stable, done well in his career. He is only mentioned to bolster Jack’s narrative, he’s not just a dad doing dad stuff. None of these people are allowed independent achievements, personalities, or ‘agency’ over how they are portrayed.