Don't always ask your roommate. "Where have you been?" "Who called you?" "What are you doing out?" Wait, this kind of behavior will make people super disgusted. Where others go, what others do and who others play with are all other people's business, which has nothing to do with you. It's best not to pry into other people's privacy!
You don't have to argue with your roommate about some issues from different viewpoints, even if you are really right. It's always easy to say something at night, but you should know what you can and can't say to your roommate. People may not win back. People are good at being bullied.
Don't listen to the irony of your study. A true friend will not be jealous of your progress and laugh at your efforts. Some people have not experienced too much human suffering and don't know how to respect each other. I don't know if a casual sentence will poke your scar. Don't worry about it.
Try not to make phone calls in the dormitory. No matter who you call, try to go to the toilet or outside the dormitory, otherwise you will never know how much privacy your phone will reveal. In case you meet some roommates who are particularly gossipy, you may be able to make up an entire ethical blockbuster with just one sentence.
Besides, I just learned to be honest with others. I have a very good relationship with my roommate. We have been in college for four years, and there are almost no contradictions. Everyone treats each other sincerely, which makes me feel that the world is particularly beautiful. In the days to come, I will treat everyone with this sincerity.