I have a neighbor, his mother and wife got into a spat a decade or more ago she laid the law down and tried to make him cut all ties to his mom.. and refuses to allow his mom to visit and step one foot in her home , which if I were her husband I would have stopped it right there, after all it’s his home too. He made many trips a year to see his mom she lives 3 states away, and they talked daily on the phone. She passed a few months ago. He’s so grateful he refused his wife’s demand and has no regrets.
Regardless of what your mom said your wife that has no right to demand you cut all ties , Oh. Hell. No.
She can easily stay away from your mom , please do keep your relationship with your mom intact, one day she won’t be here.
Honestly I think you wife should see a Therapist to work herself out. She’s punishing you and that’s abuse plain and simple.