Why did the fourth child betray

Xiaosi thought that Dieyi was not wanting him to take his place, and went out of his way to report report Dieyi and Duan Xiaolou. The ending is that Xiao Si is being martyred for the art of Peking Opera. In the square, Duan Xiaolou and Cheng Dieyi are criticized when the end is already present.

Looking at Duan Xiaolou's meticulousness and complete abandonment of self-respect. Xiao Si's face did not have the slightest smile or color, nor did he shout slogans with the people around him, and even showed a sighing expression.

Perhaps in that moment, he suddenly realized that the era of the art of Peking Opera was gone forever. Cheng Dieyi's Yu Ji will become extinct. He had gone to great lengths to lose his heart and soul, but in the end he had gained nothing.

The ending of Xiao Si pushes the theme of the whole movie to its peak, and even the death of Cheng Dieyi at the end can't go any further. Because Cheng Dieyi's heart, in the square, had died long ago. And what Xiao Si broke with his own hands was actually the "bright future" in front of him.

Expanded

Duan Xiaolou (Zhang Fengyi) and Cheng Dieyi (Leslie Cheung) are a pair of brothers who grew up together as children, both of them acted as a student, and one of them played a Dan, has always been a seamless match, especially a Farewell to my Concubine, which is full of reputation in the capital, and for this reason, the two agreed to co-star in a lifetime of "Farewell to my Concubine". However, their understanding of the relationship between theater and life is fundamentally different. Duan Xiaolou knows that theater is not life, while Cheng Dieyi is not separate from theater.

Duan Xiaolou married the famous prostitute Juxian (Gong Li) when he thought it was time to start a family, causing Cheng Dieyi to recognize Juxian as a shameful third party, making Duan Xiaolou a traitor. Since then, the love-hate relationship between the three of them around the "Farewell My Concubine" began to escalate with the changing times and clouds and eventually led to a tragedy.

Baidu Encyclopedia - Farewell My Concubine