He and she were "good friends" when they were young, but she didn't think so. There was no pure friendship between men and women. If this relationship was broken, would they still be together? If she had known it would be so painful, maybe she shouldn't have had such thoughts in the first place... It turned out that she was the only one who had the deepest feelings for so many years, and what made it difficult for her to accept in this life was that she turned out to be...
Intent: Sad sadomasochism