What does it mean that a girl in love is always a poem?

It means: the girl's feelings are graceful and lingering, and she always expects a poetic and romantic scene.

This sentence fully illustrates the poetic and pure spiritual world of girls. Because they are not influenced by secular ideas, they still maintain romantic and aesthetic feelings, whether sad or happy, all from the heart, with charming temperament. Where is the origin of "girlish feelings are always poetry"? Liang Yusheng, a famous Chinese writer, wrote in the tenth chapter of Glacier Sword Wash: "The mind of middle-aged people is as strong as wine, and the feelings of girls are always poems".