The mother-in-law backs her daughter, pointing at her son-in-law and saying what he should do.

The man said, “Her aunt even has blood on her but doesn’t know to buy anything; even when her slippers wear through and break, she still doesn’t know. Her lifestyle habits are too poor. After getting married, she has to be obedient and do everything, must follow orders—if she doesn’t, there will be arguments.”
This kind of behavior where the wife’s family backs up the daughter—just breaking up the daughter’s family—is harmful.