Thank you! I really like this manga. Also, if the new girl were overly crazy she wouldn't be on this manga, but her existence is necessary as a mean to justify Unoki's trauma. Just to explain the question: "Why is he like that?" without recurring to other types of bullies and the classic "make him phisically stronger" to overcome it. And using an unnecesary long arc to do that.
I'm betting to her being a comedic relief in the near future and the return of the fluff days.