Merlin chuckled and shrugged. He knew it was all joking. After all, Arthur said himself he didn't like it when Merlin was quiet. "I didn't mean just food. I took care of more then that."
He decided not to list things off like making sure his clothes were clean, in tact, and ready for the weather, no holes in his shoes, sword and armor he arrived in still tended to just in case, cleaning up his room, and all sort of little things to make the place better or things easier for Arthur if he could. A lot of which he was (mostly) happy to do.
"Aside from that though. I mean, what have you been doing to keep busy?" Merlin did kind of worry. Arthur never seemed to adapt to all of this as well as he did. He wasn't as naturally curious and eager to try everything this place had to offer.