I noticed it just now, but Yamada wrote that Hara-san should come over to the library, "from time to time", to indicate that she wants to be alone with Ichikawa most of the time.
Good job!
Yamada thinking that ichi is cool warms my heart.
From what I remember, 14-year-old boys are around 155-160, so Kyoutarou still has chance to become average-sized.
No worries Hara, one day you'll unravel their (open) secrets and uncover their lewd acts (head pats, cheek rubs, and handholding!). Until then, soldier on!