We know that in ancient China, the crime of "adultery" was very heavy, and in the eyes of the imperial court and the people at that time, "adultery" was undoubtedly an act of immorality, so at that time, once it was discovered that men and women were hooked up and committed adultery, they would be "soaked in a pig cage".
And for the good men of Liangshan who were happy to take revenge, only blood could wash away their shame, so in order to wash away the shame brought to him by the "adulterer and adulteress", they often took the most extreme way, Wu Song directly took off the hearts and heads of Ximen Qing and Pan Jinlian in order to avenge his brother; and Yang Xiong also killed Pan Qiaoyun in the woods; Lu Junyi also took extreme measures against Jia After escaping from danger.
However, among all the adulterers at that time, there was one person who survived by chance, and this person was Zhang Wenyuan, Song Jiang's colleague when he was a prisoner in Yuncheng County, and his "mistress" Yan Poxi was killed by Song Jiang before, and later Zhang Wenyuan single-handedly denounced Song Jiang's murder.
Logically, Zhang Wenyuan was one of the driving forces behind the direct cause of Song Jiang's fall into the grass, why didn't he retaliate against Zhang Wenyuan when Song Jiang developed?
Yan Po Xi was just a concubine
The first point is that the reason why Song Jiang was so tolerant of Zhang Wenyuan and Yan Boxi's behavior was that Song Jiang had no feelings for Yan Boxi at all, or that Yan Boxi was just a concubine of Song Jiang.
One of the reasons why other good men in Liangshan hate their women so much is that these people are their wives and occupy the position of "right wives" in the family, and the "right wives" of the family have hooked up with outsiders to commit adultery, which is undoubtedly a shameful thing in the eyes of outsiders, so in order to wash away the shame, they will use extreme means.
However, this was not the case with Yan Po Xie, who himself was a singer and prostitute, and his family lineage at that time was not good, and he had already been pointed out before marrying Song Jiang as a concubine.
At that time, when she was exiled to Yuncheng County, because she had no money to bury her father, she had to ask Song Jiang for help, and Song Jiang was also generous and took care of Yan Poxi's funeral, and at the same time, under the mediation of her mother, Yan Poxi married Song Jiang as a concubine.
However, concubines are only concubines after all, in fact, many TV dramas now see some "concubines" commanding and acting in a way that mistakenly thinks that concubines have a very high status in ancient times, on the contrary, in fact, the status of concubines in ancient times is really only one step higher than that of concubines.
There were even some people who were willing to give away concubines in order to appease the powerful, and for Song Jiang, even this concubine was just a "tool" for him to climb up in the future.
As for the matter of Zhang Wenyuan and Yan Poxi, at that time, the whole Yuncheng County was well known, and even Lei Heng and Zhu Tong wanted to help Song Jiang out, but Song Jiang not only ignored it, but also showed a look of ignorance.
The root cause of this is that he himself despises Yan Po Xi in his heart, for Song Jiang, Yan Po Xi is just a concubine, and he himself has no feelings for Yan Po Xi, but after this Yan Po Xi touched his "reverse scales": the letter from Chao Gai.
This forced Song Jiang to kill Yan Boxi in a fit of rage.
Therefore, one of the reasons why Song Jiang tolerated Zhang Wenyuan was that Yan Po Xi was not the wife that Song Jiang Ming was marrying, he was just one of his many concubines, and if Song Jiang was willing, Yan Po Xi could even be sent out by Song Jiang.
There is no need after success
After Song Jiang killed Yan Poxi, it was Zhang Wenyuan and Yan Poxi's mother who brought the lawsuit to Yuncheng County, which forced Song Jiang to go to Liangshan after this, and later Song Jiang embarked on the road of Zhao'an, returning to his hometown after the successful conquest of Fang La, at this time he was already a pacifying envoy of Chu Prefecture, killing a Zhang Wenyuan was a matter of hand to hand, why didn't he kill?
In other words, there is no need, in a sense, although Zhang Wenyuan forced Song Jiang to Liangshan, but if there is no Zhang Wenyuan jumping up and down behind his back, Song Jiang really has no way to "serve the imperial court", Song Jiang is a person who is more "pedantic", and one of the reasons why he will carry Liangshan forward is to prepare for the future "Zhao'an".
Otherwise, relying on Song Jiang's little relationship in Yuncheng County, it would be a day when he wanted to become an official, and if it were not for Zhang Wenyuan, Song Jiang would be able to successfully serve the imperial court.
Secondly, at that time, for Song Jiang, it was easy to kill a Zhang Wenyuan, but what about the public opinion after killing Zhang Wenyuan? Originally, Cai Jing, Gao Li and others were looking for trouble for him, and once he used his power to kill Zhang Wenyuan, he would inevitably become one of the handles for Cai Jing and others to frame Song Jiang.
Therefore, letting Zhang Wenyuan go was the best way for Song Jiang at that time, and Zhang Wenyuan became the only survivor among all the adulterers in Liangshan.