Divorce a Mama’s boy?

Soooo lets say you have been with your significant other and throughout the relationship there were opportunities for him to defend you in situations ir at least speak up and his hasn’t. But now, its another level because you now have a newborn but he has yet to defend his wife and protect his family. He allows his mother to do and say what she wants and he is afraid to say anything to her because she flips out. He even wants to inconvenience me and my feelings just to make her happy. He has turned on me and says I’m always the problem. He never sees my point of view or tries to understand me despite me explaining how I feel. We’ll agree on something and we’ll see we are a team but if goes against his mothers wishes he will play stupid and look the other way leaving me to be the problem in her eyes. He will even let his mom do what he wants with our baby and when I spoke up about it, he said I was wrong ... 😭🥺