What should a wife do with her husband who confessed to committing adultery, then escalated to involving her in forbidden sexual fantasies, and is striving to realize them in reality, despite his full knowledge of the impermissibility of his actions, given that he is religious and committed, all out of fear of him returning to adultery again?

The husband must offer sincere repentance, as he has committed major sins such as adultery, speaking with girls (inappropriately), and watching pornographic films. He must conceal his actions and not inform his wife of what he has done. It is not permissible for him to ask his wife to imagine adultery or to invite another man to commit adultery with her. She must advise him. If he repents, then that is good and excellent. Otherwise, she has the right to separate from him.