Cloud observed the younger guy getting more serious, he had never seen Nero act that way, not if it wasn't something about Dante or Vergil or who anyone that liked to bother him. It was something about himself wasn't it? Well, at least he seemed to trust him enough to act that way with him around.
Ah, so it was about the whole I'm too good to take orders from anyone thing... It wasn't surprising, Nero was too carefree to let anyone decide for him anything, even if it was good for him his pride wouldn't let him react as he should most of the times, at least it was what had seen from Cloud's point of view.
"You don't need to be taking orders from no one all the time... At least I don't get orders from any people, now, but that's the way jobs work, Nero." No pun intended... It was somehow the truth, thanks to luck, or for some twisted reason made up by that place, Cloud found himself being good enough on what he did for him to be the one giving orders, in certain level.