It was my ex's birthday and he told me he wanted to spend the day with our son. So I brought the kid to the mall. He invited me to stay for lunch, not out of bring polite, but for someone to look after the kid. I grudgingly said yes. Lo and behold, there was the ex mother in law at the restaurant, who was openly glaring at me and my son. I shot her an equally murderous look.. we have never been friends. She never got over the fact that I left her son, who in her eyes was faultless and bound for canonization..and I was the bitch from hell. She wasnt even the typical doting grandma.She was resentful and it was obvious that she was the priority so I packed up! What just riled me was..my ex doesnt see our son that often. And on the occasion that he does...She's there too? She was openly competing with my son, when the kid wanted something, she would take my ex to somewhere grander.She never paid attention to my kid and was gloating over her purchases. I wanted to stomp her ass right there and then.. She caused much strain during our marriage and I cannot forget that. Am I being disrespectful?