Think about that last sentence. "She loves her husband." This means that "SHE loves her husband." It is her nature that is at issue, her heart, her mind, her way of thinking and acting in regard to him. It is not about him, it is about her.
"She LOVES her husband." It is love that she shows to him. It is the active, caring, effective love that scripture always commands. She does not act out her desires or try to "be herself." She loves.
"She loves HER husband." He belongs to her. He is her husband. Paul's words remain correct. "each man should have his own wife and each woman her own husband." He belongs to her. He is her husband. Who else can love and take care of him? Who else can love and take care of her, but the man whom she loves?
"She loves her HUSBAND." He is hers for life. He has committed the entirety of his life to her. He is hers today, tomorrow, and forever. They are MARRIED, which means united forever.
"She loves her husband." Not because he is everything she hoped he would be, but because he belongs to her. Her life and his life are tied together forever. To love him is to love herself, because they are one.