Tbf, they are middle schoolers, not even highschooler so them not knowing how to communicate is realistic as hellRemember guys, if you're having an existential crisis about your relationship, it's better to talk it out with one another. Communications is a two-way street. It's how we get wholesomeness instead of barely any plot development. Looking at you my guilty pleasure Medaka Kuroiwa is Impervious to My Charms.
i think she a witch too, probably one of the eldersI don't know if it's just me, but I get the feeling she had some ulterior motive to have sex with him. It just feels too sudden of a development, but this IS made by someone who invented the legendary stag-beetle technique, so I guess there's still a chance it was a natural occurrence.