I'm honest because I have nothing to hide. I stand by my decisions and history. Ask her more about her upbringing, which parent she liked more growing up, what her beliefs are and what they used to be. See how she changed over time and piece together a loose timeline of the person she has been. This will help you get to know her better and understand her values and how she obtained them. If she seems like a bad person for most of it, bail. She's probably lying. Though maybe you'll be pleasantly surprised to get to understand her deeper. Hopefully she a keeper. Good luck!