"I meant I don't think everyone is!" he replies hurriedly, becoming increasingly more distressed that he can't make it sound like he's as worried as he is. Everything comes out like a joke, like teasing. Maybe he should just leave, since he's making Kuai more upset.

"Everything keeps changing! Some people got better, some people got angry! You shoulda seen it, I almost knocked Sora out with a chair!"

The last part blurts out as if it's particularly funny, even though it is not only the opposite, but he really hadn't even wanted to say it at all - not like that. He'd meant to say his anger made him do terrible violent things he would never have done, but it passed in time. He tries to clamp his teeth and lips together before he can say anything more.