something very important that we learn about Ichikawa's mindset in this episode: when he thinks that he can't have something that he really wants he convinces himself that he hates it. He did that with the switch console, he did that in this episode with Yamada but he also did that at the start of the series. He wanted to be friends with everyone but thought that he's too weird to have friends so he convinced himself that he hates them and doesn't need them
