I too like complaining about complaints, thus multiplying the complaints. The only thing better is complaining about complaining about complaining; at that stage it's basically exponential complaining and soon nothing else can be talked about ...
imo the first chapter should have followed one pair through the school, and you'd get to see the others sorta in the background. That way the theme of everyone being their own protagonist could be displayed, you'd get to see that clearly some more is going on, but it wouldn't necessarily "spoil" all couples and you'd already get some sort of progression and without forcing anyone to immediately remember far too many characters.