Now I'm curious.

Since it’s ‘love at first sight’, he probably wanted her to hate and abuse him; being a masochist and all?

Its kind of like when you talk to a crush for the first time and you have certain irrational expectations of them

^ exactly what the person above me said. He saw her once and heard about her family background he formed expectations and thought she was his ideal girl. He liked the IDEA he made of her. When he ACTUALLY talked to her for the first time, his expectations of her were broken since he obviously knew barely anything about her. It’s normal to think that way. But then he truly started liking her as a person when yoshino showed she was definitely that bish not to be messed with
(๑•ㅂ•)و✧

Another example is: let’s say there’s a guy you see in the halls at school, you think he’s cute and can’t help but be attracted to him. You wanna know more about him. Then you have the opportunity to meet him and get to know him, and you realize his personality is completely different from what you expected. Many people actually go through this and are often let-down because of their high expectations.

For me it's obvious that the origin story was not in the author's mind when the manga started. Guess author just decided that manga needed it.

Yeah. I thought so too. It happened in another instance too. Back when they kept doing extras and the story progress halted (cousin's visit) for several months. Almost it feels like they were still cooking what would happen next but couldn't keep up

+ ops I accidentally press post. Anyway yeah like they took a pause to sort things out to make sure the last 2 arcs make sense with the previous chapters. I mean the author around that time kept posting side story or short vignette that doesn't connect or hints to the next chapter.

Make sense. Thanks!