That was such a FUN chapter! This series is truly a master at subverting expectations (I thought this was the obligatory make-Nozaki-jealous chapter, but it didn't drag any further than a couple of frames of the poor shocked guy), mining comedy gold from outrageous character-driven twists, and then suddenly pulling the rug from underneath you with an unexpected emotional closing note (the ringtone!).
This is one of the few series that I won't mind never ending. Watching the couple's funny, heartwarming antics is more interesting to me than answering the "will they or won't they?" question.