Neo wrote:And yeah love can make you blind, just that if she was clever, after some time she would have leave him, no?
Like was said, Lucius would probably be rather adamant about her leaving. He's the type of guy who would see it as a serious blow to his ego if he was left by his wife. And furthermore, perhaps she's under some enchantment or spell that prevents her from taking any action along the lines of leaving Lucius.