so I've reread the series after chapter 14 because of obvious reasons and I noticed that Ch.11 feeds into Ch.13 which feeds into Ch.12 which feeds into Ch.14. So there's something up with the way the chapters are ordered.
Also my fucking god with the knowledge that Hinoka has been in love with Tsukushi from the very start her actions and the way she's been acting becomes so obvious as a result, especially with chapter 13 where Tsukushi tells her to please wait until she can tell Hinoka what's going on like, no fucking way Hinoka did not pick up what was being put down there.