Yea they seem to have their own little separate crews...lol but I dont think they hate each other just have better connections or more in common than others
I don't think they hate each other either, hate is a strong word, I think they probably just play better with other players...
You don't have to like each other to play with each other, this isn't play school, this is a job, this is football, this is groups of people with different interests and hobbys,