What if there is someone I hate in the dormitory?

For me, if you can't avoid him, then you have only two choices, either make up with him or let him disappear in front of you.

Reconciliation is reasonable. I think if he were still human, he would communicate with you. You treat him as a friend, chat with him, confide in me, tell me what you think of him, and ask him why he is always targeting you. If you are cynical about him, just go along with him as long as it is not too much.

Unwilling to make up? Make him disappear. Normal disappearance is estimated to be impossible, and it may only disappear forever. Can you do it?