I get a really foreboding feeling out of this, for some reason. Maybe I'm just not used to a romcom protagonist trying to convince himself she might like him back, but him continuing to read into the situation when she herself isn't aware of her feelings... I feel like this is heading for a T-bone car crash.
Likely because this has to mirror Kusunoki's previous experience from grade school, right up until her expectations/fears of history repeating can be subverted.
And the last time this situation arose for Kusunoki, it resulted in her being ostracized and beaten down for three years of her life. Additionally, while she's come a ways in improving her mental fortitude since then, she's also repeating mistakes, and making new ones, but unilaterally trying to remove herself from the situation instead of gritting her teeth and facing Otobe and Keisuke head-on.
The circumstances aren't identical--she's older, for one, and Otobe and Keisuke aren't the same people that her two former friends from grade school are.
But just like before, she knows that her female friend likes her male friend,
and she doesn't know that her male friend likes her.
Furthermore, she
might have nascent feelings for her male friend--though she's not aware of them, and I'd argue that it's only implied in a few places along the narrative we've seen thus far, but that it's not something that could be confirmed, beyond it being 'expected' if we assume this story plays out like others in its genre.
But while Hebikawa and her relationship to both Keisuke and Kusunoki are a new wrinkle that could change the calculus of how this plays out, it's still largely following the same steps before. Kusunoki sees it in part, and initially opted to just run away entirely, thinking that would solve things. It obviously didn't, and now she has to change tactics, but the core problem of nobody being honest with one another and trusting one another persists. (Which, is where her fortune from this chapter comes into play.)
And until
that gets addressed, that "T-Bone car crash" feeling is exactly what we the readers should be feeling as an impending outcome from where things presently stand.