Why did a boy ask me if I wanted to see the moon?

A boy asked if he wanted to see the moon, which was an implicit confession. Looking at the moon from the window means a love story between men and women. Fan Liuyuan said to Bai Liusu in Zhang Ailing's novel Love in a Fallen City: "Look at the moonlight in the room you want", which directly turned the obscene ridicule into a romantic confession. Since then, I want to see the moon has also become a love story between men and women.