Anyone on Galahad's side is on Magnus's side, he figures, so he might as well explain his perspective to Claudius in full^*. "I'm okay with compliments," he says, which is occasionally true. "And I know I'm good at a bunch of stuff." Including friendship, the most important skill in the world; he is warming to Claudius's flattery on that note. "Loki started out with flattery, too, but he quickly turned to insults when it became clear I wasn't going to help him end the world. And then I had to flyte him about it in the end. So I'm glad yours isn't insincere, that's all."

*By some value of 'in full.'