Your ex sounds like my late father. He was a narcissist and when his life unraveled he became delusional. I’ve told you this dozens of times but you ignore my advice repeatedly. Keep D13 away from her. Your ex has made your D suicidal and yet you continue to let your ex see her. Sever ties, let your D13 have her say, get her an attorney, fix this once and for all. Your ex needs to go.