As much as Merlin was a bit chaotic, he erred towards chaotic good, and he did have a soft-spot for Arthur. After all, the lad had been through so much, and Merlin had put in a lot of effort to get him on the throne.
"And what can you have in mind for my king? Am I sure this concern for Lancelot isn't just an excuse to remove him from the scene, displace an obstacle on your way to Arthur? Hmm?" Merlin cocked his head at Morgan.