Why did Li Chengyin in the East Palace award Zhao Sese the death penalty?

In order to protect phoeny, Li Chengyin sentenced Zhao Sese to death.

Phoeny married Li Chengyin and became a crown princess, so phoeny became the target of public criticism, and phoeny didn't understand these complicated etiquette in the palace, so she was easy to be used. Therefore, Li Chengyin deliberately made people feel that they didn't care about phoeny, which could divert their attention from phoeny. To this end, Li Chengyin also deliberately treats Zhao Sese very well, making people think that the person they love is Zhao Sese.

But in fact, Li Chengyin has no feelings for Zhao Sese. He hates Zhao Sese very much, and because Xiaofeng jumped off a building and killed Zhao Sese. Because Xiaofeng is dead, Zhao Se Se is of no use.

Introduction:

Xifeng (Peng) from nine princess, Xizhou went to Beijing with her father to meet Emperor Yangdi, and she met Emperor Yangdi (Chen Xingxu) by chance. Two children mistakenly involved in other people's crises and became friends in need. Years later, Li Chengyin got close to Xiaofeng because of her marriage. Although they were strangers, they were still attracted by each other's kindness and justice and fell in love. The good times didn't last long. The people in Li Chengyin exterminated Xiaofeng's matriarchal tribe, and Xiaofeng couldn't stand it. She jumped out of the legendary forgetfulness and planned to forget her feelings. Li Chengyin, who likes to regret, jumped with her.

When they met again, they had forgotten each other and everything related to each other and started a nominal marriage. But the struggle brought them together again, and they fell in love again. After a big robbery, Xiaofeng recalled that she was caught in a dilemma of love and hate, and Li Chengyin was also hated by her.