I don't like how anyone acted this chapter. It was obvious he wanted everyone to just quit fucking badgering him, and not a single person twigged that maybe they should just bloody let it go. So then when he let loose, he let loose inexcusably hard, but if they'd taken the many hints driven home with increasingly large calibres of hammer it wouldn't have happened.
Since this is a shoujo, she'll have a heart-to-heart with him and he'll have some kind of epiphany and realize that trying hard is magic and stuff, but in real life it likely wouldn't go that way and everyone would have been better off shutting the hell up about baseball when he clearly didn't want to hear about it.