I can’t stand my MIL

I have been having issues lately with my MIL and my husband doesn’t see any of the issues. I work retail and was 28 weeks over thanksgiving and Black Friday. So on this particular weekend when my Brother in law and sister in law come into town for a family thanksgiving that was Sunday we had to go to the zoo for xmas lights. I was not happy about it, then while at the zoo my MIL decided it was ok to teach my 2 yr old it’s ok to run away and out of my line of sight in a crowd. My husband didn’t see an issue with it since his mom was with him.... Well when we met back I with them I took my son away from my MIL and put my son in his stroller. I told my husband I didn’t want him out of it again. The following day we had to go to church at a certain time because it was what everyone else was doing and it has to be a huge family thing... 🙄 then right after church drive 20 mins to his aunts house when he has family 5-10 mins away from church. I specifically told my husband I wasn’t planning on staying for the traditional movie (National Lampoons Christmas Vacation) our 2 year old hadn’t had a nap and doesn’t need to watch that movie (besides I hate that movie) he got mad at me for this. Since then my husband and I haven’t been on great terms. His family keeps getting between us, there have been times I wonder why we are even married... if I can’t stand his mom and her family.