It's sweet but a little sad that Kurosawa can't see how much like Ishizumi she's become, "quietly holding back for someone else's sake". The look on her face in that last panel ...
i don't think she's into ishizumi, as we've seen before that she very clearly ships him and reina. it's probably that she's embarrassed at herself for shipping two real people like anime characters. (or at least i hope so)
Kurokawa please don't wander down a doomed path for our sakes and yours...
Also on pg. 8, anyone else notice Ishizumi likes Chestnuts and that ended up being the name he gave Reina's cat back in Ch. 15?