He will of try to hang himself but while he has done and is nearly choking to death, his fiancee returns to his home, and saves him before he dies, probably for the sake of his child.
The Sensei on other hand possibly will start going out with the MC (not 100% sure) and the MC also shaves his hair off to get a new look (not 100% sure either)
all in all everyone will just move and live on.
basically all bad that was suppose to happen has already happened so its already the end
also there is no moral in this story, just a showcase of people and their screwed up lives