Can Our World Only Have Each Other?

Xu Suining and Cheng Jibai have been regular partners for a year. We occupied a seat together, did our homework together, and stayed together in the library until closing time. She would dig through his schoolbag when her phone ran out of battery, and he could accurately remember that she didn't eat coriander and always forgot to bring her campus card. Everyone thought they had been talking for a long time. Only two parties insisted - just partners. At the beginning of the sophomore year, the new project once again put the two of them together. Xu Suining was used to taking all the troubles on herself, while Cheng Jibai was used to solving everything for her. One never refuses, and the other never explains. They seem to cooperate tacitly, but in fact, no one has learned how to rely on the other. Later, Xu Suining said "no" to others for the first time. Cheng Jibai also admitted for the first time that he was not as indifferent as he seemed. They accompany each other to classes, meals, and projects, and they also accompany each other to slowly have a life of their own. As for the day on which this relationship started to change—— Probably someone asked Cheng Jibai one time: "Are you still together?" He was silent for a few seconds and looked at Xu Suining beside him. "Applying for regularization."