What do you mean no one knows except dark lovesickness?

What does it mean to ask the questioner "Don't talk in secret, but care about each other"? ? It means that you can't talk, you secretly miss each other, you love each other, but outsiders can't understand. According to the relevant information, no word, secret love, no one knows from Bai Juyi's "Hidden Away", which means no word, secret love, but two beloved outsiders can't understand, two young people don't guess the truth, it is clear at a glance whether two unknown hearts still know each other and love each other after parting. Bai Juyi, whose real name is Lotte, was named Xiangshan Jushi in his later years, and Mr. Zuiyin was born in Xinzheng, Henan. He was a great realistic poet in the Tang Dynasty and one of the three great poets in the Tang Dynasty.