@RandomFanguy he was always aware of it, he was just pretending not to for the sake of maintaining their friendship. he actually didn't speak to her for a entire year because he was so worried about how to approach her.
This not actually that long with one chapter one page. But it still feel like forever. I mean, 2018 already, thing change, I can enjoy the ship do stupid and avoid shit. if author did like in Chihaya-san
@RandomFanguy he's been actively suppressing finding her attractive and Misuzu has been undermining her femininity and what Jun specifically would fall in love with so yeah logical conclusion.