Is Xu You deeply in love the son of the male protagonist?

No.

In the plot of the novel "May Your Love Be as Deep as the Sea": the male protagonist has only the female protagonist from beginning to end, and the son is the eldest brother's. He has always taken the blame. Although his friends are all playing tricks on the world, he He has always kept a clean mind and took the initiative when he fell in love with the heroine. He even made a lot of jokes when he chased the heroine.

"May Your Love Be as Deep as the Sea" is a modern romance online novel written by Yu Buyu.