When Xiaojing was a sophomore in high school, he transferred to Xiaoxi's class. They became good friends. They got together in their senior year of high school. They went to the same university. They ate together every day, went to class together, and hung out together. They promised to be together for the rest of their lives. They never talked about their breakup every day. They got married right after graduating from college, and were envied by their classmates and friends. Mu, finally after 4 years of love, I persisted, gave up, and finally lost to time. The reason for the breakup was no quarrel, no third party, no long distance, and no high-sounding TV drama-like difficulties and reasons, but there was the most realistic, truest, and most irreparable reason: "I don't have feelings for you anymore."