it seems like the author is pushing the narrative that soohan thinks that the dad change but he didn't change at all and is still the same, to just stretch the story out, which doesn't work at all because he actually didn't and he hasn't done anything for even soohan to think that he did. LIKE if she wanted to make it seem like soohan THOUGHT that his dad changed from his pov, but not from others pov, THEN she should've made him done something for soohan that would actually justify soohan thinking that he actually DID change. Because without it, it literilly doesn't make any sense. Like Girl.. just skip the whole narrative if you're not even gonna put even the minimal effort into it