[ Knowing that Keith is stubborn, it shouldn't be much of a surprise when he continues to argue. And yet, it is. He was the one who'd argued when Pidge had wanted to leave the team in the beginning, so it's bizarre, hearing him say these things. Fighting to leave.

While Shiro would normally respect the decision, he knows this isn't what Keith actually wants. This is his frustration with himself getting to him, this is... possibly his fear of his own weakness getting to him. It's not the sort of thing Shiro will allow to influence a big decision like this one. ]

That wasn't incompetence. You're exhausted and your body is having a hard time functioning. That has nothing to do with your actual ability, and you know it.

[ Crossing his own arms, he shakes his head. He's not hearing this. He's not going to let Keith tear himself down for something that isn't even his fault. ]

It's not about whether or not you'd cause a fuss, Keith. You'd be leaving for the wrong reasons. You can't give up just because you're afraid of what others will think; no one gets anywhere like that.