I agree with open eyes, sounds like personality disorder to me. In my personal experience that’s how some people with BPD behave. They sometimes create their own vision of reality and relationships and can’t accept the reality. They also can’t keep stories straight. I am sorry you are dealing wuth this and kids are still young. My husbands ex is this way but luckily my adult stepkids are estranged from her. They couldn’t handle it. Too much drama. So sorry.