Is expiation or a retraction of an oath incumbent upon a wife who requests divorce from her husband with every problem, then retracts and asks for forgiveness?

A woman's request for divorce without cause is forbidden, based on the hadith: "Any woman who asks her husband for divorce without a sound reason, the scent of Paradise will be forbidden to her." If this is the wife's situation, the husband is advised to be patient with her and remind her of Allah, and that her request for divorce without justification is not permissible for her. Her request for divorce without justification is not an oath that requires expiation; rather, she must repent from it and resolve not to return to it.