2, living together will inevitably have contradictions, but it depends on people. Some dorms will be reconciled after someone takes the initiative to show them, but it is true that the relationship between dorms has not improved until graduation (this is generally that the dorms are obviously divided into several groups, which complement each other, but they still love each other in the dormitory gangs).
3, if you don't pay attention to hygiene, there are boys and girls, but to be honest, no matter whether the boys' dormitory I have been to is clean or not, there is always a strange smell, and the girls' dormitory is not clean, but it basically has no smell (if there is really foot odor, we can deal with it here. Our dormitory has a balcony and a separate bathroom, so she can put her shoes on the balcony to wash her feet).
As for the problem of staying overnight, it's a school problem. It is difficult for boys and girls in our school to enter each other's dormitory. Aunt downstairs is on duty 24 hours a day, and the management is very strict. In the strictest case, boys can't get in for justified reasons, and girls are relatively simple, but they must register, press the campus card and strictly control the time.
After five or four years of accommodation, to be honest, there is nothing too happy or too sad, because our dormitory is quiet. I wonder if the whole dormitory stayed up all night preparing for the next day's exam. Besides, the strongest emotion happened on the day of leaving, all kinds of sadness.