The other day my mother had came to visit. She had taken my oldest son and my sd to the store. When they came back my mom had told me that my sd had told her that she was told that she  wasn't her grandma, and that she wasnt gonna call her grandma and to call her by her first name.  I was so shocked because my family dont treat any of my kids any different. They consider my sd to be mine. When I had asked my sd why she had told my mom ( her grandma) that cuz that is her grandma by marriage. And who ever had told her that wasnt being honest and her reply was she didnt kno why. .