One day, Wen Wan met Gu Nian by chance, and they met again after a long time. She couldn't explain what she felt in her heart. It was when they met again that she realized that they had been separated for so long.
Just like the yellow part of the story says, the people who I thought were the least able to say goodbye are the first to lose contact.
She would still pay attention to him, but she could also discuss him without changing her expression. She thought, maybe this is what is called letting go.