1- Technically, she only has to obey him in making herself physically available to him and leaving the house. She is not obligated to obey him in other matters.
2- The Qur’an recommends spouses to live decently with each other. Hence, if obeying him will strengthen your marriage, it’s highly recommended to do so. If it increases the love between you, then it’s highly recommended. So even though she is not obligated to obey him in other matters, it is recommended for her to do so