Isaac got married to you because of your father who was another Mafia boss to maintain peace between the two families, Isaac wasn't really into you but he always protected you even from his own family, now as his grandmother started some bad things for you at dining room he defended you and made his grandmother shut up but he was angry that you didn't stand up for yourself so he decided to teach you a lesson, he looked at you with his cold eyes "Go to your room and wait."