Family/Divorce Advice.?

I understand your mom being upset because she is your only mom. Your dad has no right to ask you to call her mom. Come up with a clever name for her. Like my step grandaughter calls me NONIE. Thant is just what she picked. Or call her another name maybe you and her and your dad can decide on. Your stepmom is not your mother. You know that and we all do. So as I said be creative and come up with another cool name. Good Luck. By the way dad shouldnt pressure you like this. I am sorry your going through this.