In the original novel, Fourth Master Yuan did not do anything to Dieyi.

In fact, Fourth Master Yuan is the one who truly understands Cheng Dieyi and truly loves opera. He is different from Duan Xiaolou. Duan Xiaolou is a fake overlord, while Cheng Dieyi is the real Concubine. Fourth Master Yuan understood Cheng Dieyi at the first sight. He is different from Duan Xiaolou's worldliness because he, like Cheng Dieyi, is an opera fanatic who is obsessed with opera, so he understands that Cheng Dieyi is too deeply involved in opera, and understands that Cheng Dieyi can't distinguish between people and drama.

The prototype of Fourth Master Yuan:

The Fourth Master Yuan in "Farewell My Concubine" is a drama addict, and his appreciation and understanding of Cheng Dieyi are also touching. In fact, the Fourth Master Yuan in "Farewell My Concubine" has a prototype for reference in reality. He is Yuan Kewen, the second son of Yuan Shikai. Although Yuan Kewen and Cheng Dieyi are in and out of the scene and have no direct relationship, in fact Yuan Kewen is also a young man who loves opera.