Moreover, Zhao Hede's body can also give off some fragrance by herself, just like the fragrant princess in Qianlong period, so these characteristics of her made Han Chengdi very fond of her.
Secondly, although Zhao has been favored for so many years, she has never given birth to a son and a half to Emperor Han Chengdi, because Zhao did something harmful to herself in order to keep fit when she was young, which led to her inability to get pregnant now.
This is unacceptable to Emperor Han Chengdi. After all, as an ancient emperor, children were very important to them, and Zhao was the queen at that time. If there are no children to support her, her status as queen will be unstable.
This led Emperor Xian of the Han Dynasty to focus all his attention on Zhao Hede, and then he began to neglect Zhao Yanfei. However, Zhao herself is unyielding, and she wants to get the game back, so Zhao keeps some pregnancy through them.
But once when she was making love in the palace, she was found by the passing Emperor Han Chengdi, but she didn't go in and expose her on the spot because of her face. On the contrary, he was even more indifferent to Zhao Yanfei afterwards, and he only loved Zhao Hede from then on, so in the end, Han Chengdi died in Zhao Hede's bed because of too much sexual life.