The Wounds Of War Cut Deeper Than Eyes See

"'They're fighting again.'
They sighed as one.
They were always fighting. Especially before a battle.
The Knights turned, looking over the fire and across the camp, to find their two (closest and most trusted, yet most infuriating and stupid) friends, barely visible, in the shadows where the forest started to thicken.
'They always fight before a battle.'
On those rare occasions Merlin and Arthur thought to seek privacy first, or Merlin cast a spell around them that granted a certain privacy for the pair, the Knights still saw the fight. Which, often, was worse than simply hearing it."