Why did Gu Dasao pretend to be sick and cheat Sun Li in Water Margin?

What is the reason why Gu Dasao pretended to be sick and lied to Sun Li? She did it for someone. This man is her husband Sun Li.

Since Lehe told Gu Dasao that Jie Zhen and Jerbo were framed and imprisoned by Tai Gong, Gu Dasao has been busy to save these two cousins. At first, he wanted to rob the prison with her husband Sun Xin. Sun Xin felt that there were too few two men, so he called Zou Yuan and Zou Run, uncles of Yunshan, and four of them prepared to lead the troops to rob Yunshan.

Sun Xin said that everything is ready, but there is still an "east wind", that is, Sun Li. If Sun Li, an army commander in Dengzhou, leads his troops to chase after him, the four men's plan to save and confront each other will inevitably fail. Sun Xin himself knows that his brother can frighten bandits near Dengzhou. But Sun Xin, Gu Dasao and Sun Li, the eldest brother, are both military forces and powerful people in Dengzhou. Don't go to become an outlaw with four people. Maybe in order to keep the official position, they will tie up four people and send them to the official.

At this time, Gu Dasao and Sun Li thought of a good idea. They tricked Sun Li out first, and then coerced Sun Li to go with them to save Jie Zhen and Jerbo. Sun Li is good, one person is no match for four. There is such a detail in the novel: Gu Dasao pulls out two knives beside him. Zou Yuan and Zou Run each drew their knives. Sun Li called, "Aunt, you stay." If Sun Li promised late, slips will fight. There is a clever plan, but how to coax Sun Li here? Gu Dasao and Sun Xin cheated Sun Li by pretending to be sick. It's normal to pretend to be sick. Sun Li and Sun Xin are brothers. One of them is ill, and the other must dare to come and see. The problem is that Sun Li's brother Sun Xin is not the one pretending to be sick, but his sister-in-law Gu Dasao. More strangely, Sun Li learned that his younger brother and daughter-in-law Gu Dasao was ill and went to see Gu Dasao.

In fact, it is more reasonable to replace Sun Li with Sun Xin. In an era of strict ethics, men and women must eat separately. In A Dream of Red Mansions, the Jia family celebrated the Mid-Autumn Festival. Jia family sat at a table with his wife, and Jia Zheng sat at a table with other men. Jia Lian is at home, Xiangling is coming, which makes people say seven or eight points. My aunt's illness affects my uncle's heart. What will readers think? Is there anything between Gu Dasao and Sun Li?

After reading Water Margin, we didn't find any ambiguous relationship between Gu Dasao and Sun, that is, the relationship between an uncle and an nephew. One thing that can best prove their relationship is that Sun Li's wife, Mrs Le, brought Sun Litong to visit Gu Dasao.

But this time Gu Dasao lured Sun Li out for Sun Li and Sun Xin. When Sun Li came to Sun Xin's house, he saw that his brother was not ill and forced him to be a bandit. Sun Li was so angry that she was about to vomit blood on the spot. This is my own brother, even worse than cats and dogs. From then on, Sun Li and Sun Xin became estranged. Sun Li will hate Sun Xin.