She said that maybe I should be looking at myself as the cause of hubby not becoming an MS
Oh pahlease. Look at the years of mind control coming out! Blame, blame, blame. She's a blamer, and has classic low self-esteem. And your hubby not becoming an MS. Wow. A glorified toilet scrubber.
Make your boundaries known. Be honest to yourself and everyone around you. If you can't talk to your mother without getting emotional, write a letter and mail it. You are not going to put up with that shit starting right now. Limit your contact, and if she breaks YOUR rules, then YOU will limit contact even more, because you refuse to let toxic people ruin your life. Be busy, be happy. Get new friends - get out there and have fun. End everyone's reign of nonsense over your life.
I know it's easier to say than do, but grit your teeth and do it. You'll be very glad you did.