First of all, if the school has no special accommodation requirements, you can go home when you are not at home, but you should explain to the counselor the situation of not staying, in case the aunt who is in charge of looking at the house can't find anyone in the dormitory, and may be punished, depending on the management system requirements of the school.

You can rent a house off campus if you have the conditions, but you must get the consent of the counselor.

But generally speaking, if the school has no special requirements, you can not live in the dormitory. If you have a student handbook, you can look at the requirements in the student handbook and see if there are any specific accommodation requirements. It is suggested to ask the work or some seniors. The requirements of general universities are accommodation. If the aunt in charge of accommodation is not strict, it is no problem to go out for a few days. If the aunt in charge of accommodation is strict, please apply to the counselor.