Boyfriend’s Mom

I can’t stand my boyfriend’s mom! Everything about her drives me nuts. She always is giving me looks and she talks about me behind my back. My boyfriend is a momma’s boy... He will ask me a question and immediately after I give my answer he will call and ask his mom. I have been with my boyfriend for 2 years, but lately this has been really getting to me. I also feel like he gets irritated and mad over the smallest things. He stays mad for long periods of time and doesn’t want to talk to me. I feel like I always have to watch what I say around him. I love him dearly, but I don’t know what to do.