I hope she became good and added to his harem. I think she was just affected by the bad environment she grew up in in the past life.
But with the MC giving her advice should help her reach enlightenment.
@skizlock I even tried to justify his behavior by re-reading the series again. He was even described as "The best of all men". He even escaped dozens of men even when he was already stabbed in the back. He survived all dirty and evil things (Which means he should be already wise or...