What is the reason why Feng Jingyao assassinated Xu Wenqiang? More detail

Be jealous! In the seventh episode, the fortune teller calculated the lives of Lao Feng and Govin successively, saying that Govin would be independent after he was 30 years old, which was more promising than Lao Feng. Lao Feng has always believed in God, Buddhism and fortune telling, which can be seen from Lao Feng's repeated worship of Buddhism.

At a deeper level, Lao Feng started from selling fruits, except for being vicious. Compared with Wen Qiang, a dropout from Peking University, he is far from thorough. After that fortune-telling, Lao Feng obviously showed jealousy of Xu's talent. Wen Qiang is more independent than Ali, and Lao Feng is afraid that he will take his place one day because of his decisive decision. Then the conversation with Uncle Xiang proved this point. Xu not only handles things more thoughtfully than himself, but also gives priority to everything. Even his precious daughter fell in love with him. If he becomes his son-in-law in the future, if he can't be gentle and sincere to himself, it will undoubtedly be his disaster.

So Lao Feng used Xiangzi Yamaguchi to test Wen Qiang to see if he could be sincere to himself. He himself said, "It's better than not letting him die." This incident proved Lao Feng's worry. So it's normal to know it's dying.