My dad is like that. I cut him out of my life for two years. Then he came back around wondering why. So, I told him. Now I just tell him when he's pissing me off. I've even hung up on him a few times. It seems to work. I guess it was about boundaries for me. Maybe you need to set some better boundaries. It's not cool for her to dis your hubs like that or to call you names in front of your child.