Monster in law is coming to visit!

my mother in law is coming to visit like I love her but I love her more when she's far away because. when she's around she starts bossing me and my guy around and then she digs in our stuff and she criticizes everyone that she's got me feeling nervous when she shows up because I start feeling like I'm not good enough or I'm not the "DAUGHTER IN LAW" she wants and I'm to respectful to tell her to not dig in our stuff and my guy is too scared to say anything to her and I feel like since thats his mom he needs to do it