The situation you described can be referred to as an "overbearing mother-in-law" or "controlling mother-in-law." This term is commonly used to describe a mother-in-law who excessively interferes in her son-in-law's life and relationships, often making decisions on his behalf or expecting him to consult her before making any significant choices.
The behavior of an overbearing mother-in-law can be intrusive and may lead to strained relationships between the son-in-law and his spouse, as well as other family members. It's important to note that this type of behavior is not healthy for any relationship and can cause stress and tension within the family.
Dealing with an overbearing mother-in-law can be challenging, and it requires open communication and setting appropriate boundaries. The son-in-law and his spouse should work together as a team to address the issue and establish clear boundaries with the mother-in-law to maintain a healthy and respectful relationship for everyone involved.