You know, Hazou's misunderstanding of Akane's breakup is perfectly in character now, but it would have been massively out of character earlier in the story. There really is an absolutely massive difference between Hazou's characterization in, say, chapter 30, and Hazou as he is now. I mean, consider how deftly Hazou handled Noburi, or how he used to basically do Inoue's job for her, both in the sense that he was the actual decision-maker of the party, and in that he was the person who went around handling everyone else's emotions. He didn't do a perfect job of either of those, but he was a lot better at it than he is now. It's sort of annoying to watch every other character grow and improve as Hazou slowly becomes less and less capable. Eh, maybe it's just that all the other characters grew, and Hazou didn't, so he looks worse by comparison. But still, the difference grates.