In which episode did Yun Ge have sex with the emperor?

According to the query of iQiyi, in this episode, A Zi told Yun Ge that the emperor had chosen an auspicious day to have sex with the queen. Yun Ge ran to the ginkgo tree and wept bitterly. At this time, Liu He entered the palace in red and told him that the joint minister of Huo Guang had put Nahuo into the palace. After hearing this, Yun Ge decided to leave the palace. Song on the Cloud is a costume idol love TV series produced by Dongyang Xingrui, Dongyang Huanle and Shi Jing Culture, produced by JUNG WOO Studio, with Hu Yijuan as the general director and starring Angelababy, Du Chun, Lu Yi, Chen Xiao, Yang Rong, Su Qing, Bao Bei, Mao Xiaotong and Kou Zhenhai. It is adapted from Tong Hua's novel Song of the Cloud. Set in the Western Han Dynasty, the play tells the legendary love story between Yun Ge, a girl in a green shirt, and Meng Juehe, the son of Han.