Eh, this works out for the best, I think. It makes Ploy's oblivious behaviour earlier on more understandable, if she knew he was this much of an awkward doofus, and not actually an abusive stalker like he seemed. That's a relief for me, because I generally prefer my romance stories when they don't involve domestic violence, y'know? So I prefer this over the alternative.
With that said, this whole saga with Ploy just seems like it's been working at cross-purposes. She must have felt at least somewhat unsafe - would she have left her home, even reluctantly agreeing to stay at her relative's place on the coast, if she just thought her ex was a harmless nuisance? But then, she mustn't have been that worried about him, or she would probably have been more wary about going out for food or wandering around alone. But in the end, she was right to be concerned, since he did mistakenly kidnap and confine someone he believed to be Ploy after following her to the beach. He was understanding enough when he realised his mistake, but would he have acted the same way if it had been Ploy after all? He demonstrably felt some level of obsession and entitlement specifically over her, so the fact that he treated Donut okay doesn't tell me a whole lot about how he would have treated Ploy in the same situation. But then he's just supposed to be a helpless goofball who fully repents after a minor telling-off by a stranger, end of story? Ehh...
I guess my point is, the "love comedy" angle kinda misses the mark when you keep adding legitimate red flags and spend multiple chapters building up an actual sense of danger and tension. Even with such a lighthearted and harmless outcome, I can't look back at the previous arc as anything other than a tonally awkward story revolving around the serious threat of domestic violence and stalking. Because that's kinda what it was, even with the punchline at the end.
Comedy is hard, I guess.