1, don't be too blunt when talking to him (there must be an implication, and he should be reflected everywhere that he is actually very cheap);
2. Get on well with your former good friends in secret;
3, if the girl says, just let her find your good, don't force O!
The whole class is for him, right? If he is wrong, you can tell the teacher. If you are wrong, there is no need to argue with him!
Organize a sequence diagram for you:
Get along well with your classmates again.
(2) Find out the bitch's mistakes many times, and so on, and expose them in front of the students.
Encourage his classmates to betray him.