In-laws 😤😩

My grandma is coming to stay with us for a few days. I tell my husband about it and he flips out says he’s staying at a friends house the entire time she’s here. My Grandma is a complete neat freak and will no doubt have everyone cleaning until our house is up to her standards. I knew he wouldn’t be happy about her coming but I feel he’s completely out of line with his angry outbursts and declaring him moving out until she leaves. What do you guys think?