just to add a thing, i had my time that i thought everyone waited me leave the room to talk and laugh behind me... Part of it was kind of true (i mean, there were some people that did some stuff) but i really did the overreaction that he does.
I just realized that from this chapter onward Ichi's default position in the library changes from standing up and facing the bookshelf to sitting down next to her. I like that Chii wound up unintentionally being responsible for them getting closer in a way.