I had two sunset platies that bullied together a single tux platy, so i removed one of the sunsets and once i did this the other seem depressed and died a week later. So now i have no sunsets.
Anyway i have 4 male platies, 1 tuxedo, 1 rainbow, 1 orange mm and 1 white calico.
Its funny but the two platies calico and orange mm seem to have pair bonded, yes i know their males, but they never leave each others side, they do chase the other male platies away if they come near, but don't bully. Rainbow seems to like being chased as he likes to try and follow calico and mm, it ends up being like a game of tag.