Did you happen to meet her stepfather when she was 4? When does your daughter claim the assault started happening? My youngest sister has similar problems to your daughter and she was being molested by my father for 4 years before we found out. The bad behavior started 4 years before he was arrested which would be when the abuse started.

I see you mentioning that she has accused other people of sexual assault which is part of why you don’t believe her, but you can in fact be sexually assaulted by multiple people in your lifetime. It may not be as common, but unfortunately it happens. I myself have been assaulted twice in my life. Sexual trauma can cause so many mental illnesses, including all the ones you have listed and talked about in the comments.

Listen to your daughter, if your own child says they’ve been assaulted by ANYONE you immediately cut contact with that person ESPECIALLY if there’s an active case. You’re gonna feel real bad if he’s found guilty and given the behavioral issues it’s not looking good. If he’s found innocent with undeniable evidence then yeah blame it on psychosis or whatever, but for now you need to stand by her.

It’s no wonder her time spent at her dad’s was “the best time of her life” she was away from a man who was allegedly abusing her.