Find out the reasons for this contradiction, dissatisfied with the way roommates do things, or don't understand or agree with some things, and so on.
After figuring out the problem, try to find a way to solve it, such as finding an outsider to make an apology for people with contradictions, finding a step for each other through trivial actions, or bowing their heads to admit their mistakes. Most of the dormitory problems stem from not thinking from another angle and only caring about personal interests. If the other side's position is taken into account, maybe the contradiction will be solved. In addition, if the contradiction is very big and the problem is very serious, you can seek the assistance of the counselor and teacher with the help of external forces and ask the seniors how to solve it.
Of course, dormitory life belongs to collective life, and it is not easy for several people to get together because of fate. Learning to cherish this friendship and attach importance to harmony is the most important thing!