The story takes place in the hit drama "Dajiang Dahe 3", Song Yunhui is a controversial character, and his two marriages have caused a lot of discussion. Observing his different attitudes towards his two fathers-in-law, we can reveal Song Yunhui's different views on Cheng Kaiyan and Liang Sishen, which also becomes a reflection of the difference in his attitude towards the two. 
Let's focus on the marriage of Song Yunhui and Cheng Kaiyan first. In the beginning, their relationship was like a clear stream, quiet and beautiful. Cheng Kaiyan has a gentle personality, and her smile is as warm and pure as the rising sun.
Over time, the shallowness of the creek became apparent. Cheng Kaiyan's ability and learning ability are very mediocre, which makes it difficult for her to keep up with Song Yunhui's pace. This gap is not only in knowledge and ability, but also in the understanding of life and values.
Song Yunhui pursues lofty ambitions and pursuits, and he is eager to ride the wind and waves in the torrent of life. And Cheng Kaiyan prefers a calm and comfortable day, and is unwilling to get involved in the wind and waves. This difference gradually accumulated, making Song Yunhui feel more and more depressed in his marriage.
What made Song Yunhui even more depressed was Cheng Kaiyan's pathological possessiveness. Her lack of confidence often makes her wonder if Song Yunhui is cheating, and even checks his underwear. This behavior violated Song Yunhui's privacy and hurt his self-esteem. Trust is the cornerstone of a marriage, and once trust is broken, the marriage is in jeopardy. Song Yunhui is like a bird trapped in a cage in this marriage, longing for freedom but unable to escape.
In contrast, Song Yunhui and Liang Sishen's marriage is more rational and mature. When he met Liang Sishen, his life seemed to open a new window. Liang Sishen is a smart and capable woman, and her independence and wisdom attract Song Yunhui. They are highly compatible in their minds and are able to understand and support each other.
Even in such a perfect marriage, there are inevitably contradictions and frictions. Liang Sishen's father, Liang Daolin, was prejudiced and misunderstood about Song Yunhui, believing that he was a utilitarian, ruthless and unrighteous person. This prejudice made Liang's father full of vigilance and hostility towards Song Yunhui.
Song Yunhui did not give up his relationship with the Liang family because of this. He won the approval of Liang's father with his sincerity and hard work. Although he did not directly oppose Liang's father's illegal loans, he reminded Liang's father to be cautious. This treatment shows not only his sleek sophistication, but also his principles and positions.
It can be seen from Song Yunhui's attitude towards Cheng Kaiyan's father, Director Cheng, that he is not satisfied with Cheng Kaiyan and her family, and even has an attitude of disgust and disrespect. He felt taken advantage of and expected by the Cheng family, which made him feel depressed and uneasy. He sticks to his principles and bottom line, and is unwilling to violate his conscience for personal gain. This contradiction and conflict made Song Yunhui's marriage more and more troublesome to him.
The attitude towards Liang Sishen's father, Liang Daolin and President Liang, shows Song Yunhui's modesty and prudence, which is also mixed with respect and sleek sophistication from the heart. Although Liang's father was prejudiced against Song Yunhui, he did not give up his relationship with the Liang family. Instead, he strives to show sincerity and strive to win the approval of Liang's father. This treatment shows not only his tactfulness and sophistication, but also his principles and positions.
Song Yunhui's different attitudes towards different fathers-in-law in his two marriages convey his different views on Cheng Kaiyan and Liang Sishen. Cheng Kaiyan's marriage made him understand the cruel reality of life, and Liang Sishen's marriage found spiritual sustenance and resonance for him.
Through the drama "Big River 3", we can see the truth and cruelty of human nature in marriage. Everyone has their own needs and expectations in marriage, but when these needs and expectations are not met, conflicts and conflicts arise. The key to resolving these contradictions and conflicts lies in mutual understanding and tolerance.