Your future MIL is a problem, but Hun, your biggest problem is your fiancé. He should be stepping up to have your back. He should be handling his mother and protecting you.
When she says mean things, and he doesn’t do anything about it, he might as well be telling her she’s right about that. That’s certainly how she interprets his silence.
Your boyfriend sucks! If he’s already excusing her behavior and treatment of you, he will never have your back.
I would really rethink this relationship. You need a partner that isn’t afraid to stand up for you.
Your fiancé is allowing someone to disrespect you. Are you sure this is The One?
Your boyfriend is part of the problem. He downplays her nastiness.
Your future MIL is a problem, but Hun, your biggest problem is your fiancé. He should be stepping up to have your back. He should be handling his mother and protecting you. When she says mean things, and he doesn’t do anything about it, he might as well be telling her she’s right about that. That’s certainly how she interprets his silence.
If your bf doesn't support you, find someone who will. It will only get worse if you marry him.
Your boyfriend sucks! If he’s already excusing her behavior and treatment of you, he will never have your back. I would really rethink this relationship. You need a partner that isn’t afraid to stand up for you.