First time watcher season 2 reunion

This has been a wild ride as my first time watcher, especially not being able to have been live in action when Jenn and all this went down the way Jenn truly defend her innocent even in this reunion and even her husband it’s like it’s almost just comedic cause obviously I know what happens but does anyone have any insights? Does Jenn like truly believe she is innocent or is she’s such a good liar and manipulator is she really that narcissistic or is she really truly delusional? I don’t mean that’s being rude. We’ll make a little root so I don’t think she has a good person at all, but I can’t understand.