Like Batman both her parents are dead… or so she says to everyone she knows. Until one day… the bomb drops and you find out that her mom is alive. They just don’t get along, so she tells everyone both her parents are dead. You can’t entirely fault the person, we all deal with things differently, but whatever she’s dealing with she’s showing she’s willing to massively alter the truth to fit her narrative. You need to be careful, because she may someday alter the truth about you to fit her narrative.