In the case of an engaged couple who have decided not to marry: if the man feels that he is not acting properly toward the young woman and if his passions are too strong and he feels that they ought to marry, then they should get married, as he wants to. There is no sin in this.
Obey all his laws that I have given you today, and all will go well with you and your descendants. You will continue to live in the land that the Lord your God is giving you to be yours forever.”
So I would prefer that the younger widows get married, have children, and take care of their homes, so as to give our enemies no chance of speaking evil of us.
But if any do not take care of their relatives, especially the members of their own family, they have denied the faith and are worse than an unbeliever.