idk what commenters are on about. people ARE messed up, it's written as a messed up thing. divorce isn't something people go for willingly and easily. if you can fix the relationship, you fix the relationship. "he voluntarily became a homewrecker" did we read the same thing? he was hardly conscious and drunk, by definition he could not consent. he liked him so yes, he didn't push him away, but if sober he wouldn't have. yes it continued after, but it's shown time and time again that he had no power in that relationship, he did not want to be doing it. just he had no control. when he saw him again he said "it's not such a bad memory anymore" (paraphrasing) at the time, and after, he found it to be awful. the point of that interaction was for him, and in turn the readers, to realise that it's not such a big part of his life anymore, he doesn't have to beat himself up over it, and haru was the one that meant he could do that. I do have some gripes with it but because of commenters' histrionics, I don't care and I'm not going to write about them. 3.5 stars.
Itadakimasu, Gochisou-sama