NoOne,
When you say that things aren't right...I would say trust your instincts. By ignoring the RED FLAGS that our subconscious tried alerting us with before, we got into a whole lot of trouble. Trust yourself now. If this behavior is unusual for your daughters, use caution. I had a similar issue with my youngest son questioning me daily as to where I was , where was I staying the night...(at the time I was couch surfing among family members). I later found out he was passing information on to the "Psychopath", innocently or not. But because I instantly became alarmed at his questioning, I was vague. I think my instincts have kept me safe up to this point.
No, I do not think your "Psychopath" has redeemed herself...sorry I don't think they change unless they want/can get something from you.
Stay safe- trust yourself.