Why did Ye Peng want the Cheng family to make noise?

Because of his love, Ye Peng fell in love with the North when he got to know it. Accurately speaking, he fell in love with Cheng Jia when he saw him in deep trouble to save people and came back covered in injuries. He thinks it seems frivolous, and there is a true temperament behind the cold face, that is, he fell in love with the Cheng family. Seeing the plot setting of Know the North, I found it very useful. I have read it several times by myself, hoping to write it down. But at that time, I only thought it was a stage of planting seeds for Ye Peng's heart, and the real fermentation was in the later period and before the first time. According to the book review, this book tells the story of Cheng Jia, a famous photographer with bipolar disorder, who suffered both professional and emotional blows. He went to Hoh Xil alone to collect the wind, got to know Ye Peng, the stationmaster of the nature reserve, and followed Ye Peng and others to shoot stories to publicize and protect wild animals from poaching gangs. Along the way, there are bullets, tears, love from you and me, and great love between heaven and earth. Ye Peng and Cheng Jia both think that they are burdened with original sin.