I have issues with my MIL - we got on very well until my husband and I got engaged. She is condescending, sly and has said some VERY hurtful things to me, and insists on being involved in everything - all of which my husband turns a blind eye to. I have given up trying, I am civil to her but I get on with my life. I see her once every month or two even though she only lives about 30 miles away I refuse to go out of my way for her.
Your relationship with your boyfriend is between the two of you - not his mother. You do whats right for you and leave her to it. And good luck! :)
Stop for a minute, open your mind, learn. You may not agree with what I say, I may not agree with what you say but we will both learn something new.