Well, if she cancelled on him when it was his holiday she would be in contempt since court order stated that they alternate holidays. Your situation sounds exactly like mine. When my ex still lived in TN I could see the children any time I wanted. Now that he is married and moved out of state, I am lucky to see them. My attorney is in the process of trying to change custody. However, until a parenting plan is in place my ex is to follow the current order. Has your husband and his ex created a new parenting plan?