... Well, at least the truth's out now. Wonder if the guy will try to change his ways after realizing his mistake back then? Does he even realize he's making another mistake now? Is it even one?
At this point, though, we know more about the rival, MC's past love, who was hinted at and revealed for 3-4 chapters, than the FMC we've seen at the start of the series, and we're 15 chapters in. This progression is weird.