"Oh, I think you remind me often enough." He replied casually, seemingly a little amused by the comment. Beyond the response, Merlin didn't really think too much more on it. He wasn't particularly interested in wondering what in specific he'd done to make Arthur feel the need to say how thick he was. More then likely it was his general disappearance as a whole, and the lack of trust he'd shown in Arthur.
"Was their something particularly dimwitted you would like to chastise me for, or was it just a general observation?" Merlin offered, prompting Arthur to continue if he felt the need to help smooth over the situation further, or work out his frustrations over Merlin's behavior these past weeks.