His ex-wife is just evil. She's accused him of molestation, domestic battery, child abuse, etc. Now her

latest scheme is to call and harr him on the phone, withhold his daughter, change exchange times for picking up his daughter, trying to have him arrested when he shows up to pick up his daughter, etc. She has stalking characteristics. He thinks that if you ignore her, she will go away. However, she's getting worse and worse. She remarried in March and we thought she would calm down but she's just getting worse and worse. He goes another day in court over stupid stuff. Can anybody share their experiences and what they did to calm down the evil in an ex-spouse? Why are they like this? Thanks!