Can we just talk for a moment about how amazing an actor Colin is? Cause in that fourth gif we can all see Merlin’s not really all that glad he could help. He’s glad he saved Arthur and his destiny is safe for a while longer, but we can also see dashed hopes about Arthur finally coming to understand that not all magic is evil, and the fear and certainty that at some point in the future Merlin will have to reveal his magic to Arthur and the chances of Arthur accepting him just as he is are once again nil. And it’s because of Merlin and the choices he made that day. He chose to save Arthur and hide who he is for a while longer. He chose to stay by Arthur’s side and protect him at all cost, even if it meant building their relationship on trust he knew he’d one day have to break.