My Dad Is the Prince of Beijing

The Background Reaches the Sky, the Prince of the Capital

The Male Protagonist Starts the Game for Fun, the Female Protagonist Finds Out and Leaves, and the Male Protagonist Chases His Wife to the Crematorium

I want to read a book like "Mr. Yan Kneels on the Washboard to Soothe the Heartless One". At the beginning, the male protagonist was just playing around or unable to recognize his own heart, thinking that he had no love for the female protagonist. After the female protagonist knew the truth (after being rejected) and left, the male protagonist realized that he could not live without the female protagonist and began to commit suicide.