Usually I'd say what's wrong with the guys for dumping their hot fiancees for a moronic underdeveloped shorty, but this might be a special case. The main girl is basically dead inside unless she turns into a hellion, the blonde girl looks too headstrong for the meek brother, and the third one is a superwoman yandere with the strength of 10 men. The men feel almost justified in getting rid of their fiancees. They just went about it the dumbest way.