Is the wife considered to be in error for requesting the closure of the door separating her home from her father-in-law's home, even though the father-in-law is not elderly and is still working?

There is nothing wrong with the wife requesting independent housing, as this is her right, and the husband is legally obligated to provide it. The husband erred and behaved poorly by responding to his wife with harsh and rough words, which could be an opening for Satan and dispute. The husband is commanded to treat his wife well, and he may honor his parents, but it is not permissible for him to wrong his wife, for she also has rights over him. It is advisable to be patient and to engage in good understanding, and if necessary, to involve some righteous individuals as mediators.