The shuffling Merlin had heard was Arthur as he sat up from his seat and walked over to his overly large bed, flopping down onto it and burring his head in the pillows, the butler has rung up to his intercom and told him that Merlin was here and he guessed he must be on his way up now, if not already by his door. 
He felt like he wanted to throw a fit; even if he had not thrown a fit since he was a small child and he knew how stupid it would look for an almost of age boy to throw things around and yell- he really saw no other option to his predicament, sighing he decided against it and instead just called out-
"Well, come in then, my father isn't paying you his good money for you to stand outside my door," figuring that Merlin must be out there by now, probably waiting for Arthur to let him in his room, like he was going to get up and do that.

It wasn't that he didn't want to learn, or even that he didn't want Merlin to be the one to teach him, he honestly couldn't care less who it was, his problem was how this would effect his athletic practicing time, his father had said no more football until his grades were up, and feeling like football was the only thing he was good at- or would ever be good at, he saw his chances of ever playing again very slim. 
Burrowing his head down into the pillows, effectively messing up his tidy hair, he waited for his 'tutor' to enter.