Im confused 💀😂

Soo this is going to be a confusing soap opera but I really need some help on this!

So I had two love birds Kiwi and Sky and I thought Sky was a female but they both literally never got along and always fought with each other and I asked a breeder and he said Sky is a male. 💀

So now I got two more love birds that the breeder said were female: Snow and Apple and he said to pair Snow with Sky and Apple with Kiwi because their colors are same. And he told me that Sky and Kiwi keep fighting because they are males and their color is different

But now Sky is getting along well with Apple and Kiwi is getting along well with Snow????? Their colors are different so can they be partners???! SOMEONE PLEASE LET ME KNOW