He's well aware and accepts that this is him, and it doesn't change what he thinks of him. "You did a good job." He trusts him enough that he does his job.

"I'll join you in your tent." Since he figured that will put Xue Yang in a better mood and he follows him willingly to his tent. "I needed a rest too. If you need something to eat, they have meals in the boxes left and I can fetch for you."