I don't know what's the mangaka trying, saying us how awesome Simca and Kururu are and choosing Ringo out of fucking nowhere with a contrived "plot twist" which is nothing more than a bad written excuse.
It's like he just was in the mood for some trolling. And it's worse because he's not: Ringo is actually really popular out there in Japan (as opposed to always second or third girl over here)
Well, it's not like the best girl(s) losing at the end is anything new in manga...