I don’t know if it’s intended for intimidation.
It may be her goal to revive the sick-seeming early game she ran on JD in the beginning, the ‘presented herself as a carbon copy of me’, in an attempt to, I don’t know, make him want to go easier on her? Fall under her spell again? I think she’s the kind of person who would like nothing more than to fool him into falling for her again only to make him miserable.
She wanted to convince him that they were deathless soulmates. It’s been indicated to the outside world to us multiple times, through the reported words and actions of both since 2015. Bonding them through adrenaline and trauma, IMO, making herself seem indispensable to him.
I wanted to know this too… unfortunately the CourtTV commenting gang completely ignored the questions of how the recordings came to be in the first place, and for what purpose (at least as far as I could tell while I did chores in the foreground). I’ll bet he wishes with all his might he never suggested it now; but he was clearly desperate to pin her down, as she kept telling him that no, she never in fact said or did what he’s telling her she did…