Things I thought out...

There probaply arent two people, with whatever chemistry, that work better together than those who hate each other's personalities, both knows the other hates other, but they still try to hold the peace because - for now - they are stuck with each other. So both bite their anger and do their job as well as they can, as fast as they can, to get sooner away from each other.

They dont chat with each other, nor do they slack; they just want to get on with it.