Is a wife's request for separation from her husband—who insults her, curses her family, beats her, and reveals their household secrets—considered a mistake, even though she loves him but fears having more children with him due to the possibility of a future separation?

What a husband does by harming, insulting, and beating his wife or her family is forbidden and considered one of the major sins. This action permits the wife to seek a divorce, but it is recommended to be patient and try to reform him first. If cohabitation becomes impossible, then divorce is the solution. As for refusing procreation, it is not permissible, because it is a shared right between the spouses.