@darara Focusing solely on the fact that he "slept" with another girl and ignoring all context and circumstances related to that is pretty narrow-minded. There IS a difference between willingly choosing to shit on your loved one's feelings and trust and being so intoxicated you aren't even really in control of your actions.
As a matter of fact, depending on how far she went and how intentional her actions were, I'd even argue that Subaru raped him since what he did is no different from some asshole taking advantage of a drunk girl and having sex with her while she is intoxicated, except no one sees it like that and engages in victim-blaming because "hurr durr men can't be raped lol".
The fact that not even Igarashi sees it like this and that he is too fucking stupid to explain what happened properly and realize he got taken advantage of while drunk certainly doesn't make things better.