I think your analysis is very reasonable. He just feels that he has always been excellent and is used to being praised by many stars. When he arrived at the university, everyone started from a new fair starting line, but he still couldn't forget his sense of superiority. I don't know his usual ability to cope with setbacks. If he is still good in this respect and doesn't give up easily, he can be given appropriate stimulation and blow to reposition himself, but he should pay attention to balance and don't blindly hit him. Or do his parents always say how good their children are and give him such hints to make him feel too good about himself? Don't always think about how good he used to be, think more about his current problems. It is best that this kind of percussion education comes from people close to him, and it is best that friends encourage him more, which is more balanced and will not make him unacceptable at once. Or find someone he usually prefers to talk about. It seems that this classmate has a really big problem, and there are similar situations among my classmates. Being isolated is the best result. If he can't stand a little blow, there's really nothing he can do, but maybe it's good to scold him and let him know his current situation. The last suggestion is to take him to see a professional psychologist for systematic and comprehensive psychotherapy.