From my experience on this site people seem to be rather on board with rape or constantly find excuse for it, probably due to how common it is in mangas. At the same time cheating is super frowned upon, and it seems really odd to me, that out of two bad things, the most traumatic of them is being defended.
Rape no doubt. Like cheating can't traumatize someone so bad they're scarred for the rest of their life or leave them them in a constant state of "What did I do to deserve this?" I don't support it irl or fictionally fetishized. Gross reply