For one who spent his entire life devoting himself to growing ever stronger, Felix finds himself almost at a loss with you. He's heard of you—you're weak by no means.
You're skilled with the sword and other blades, and yet you choose not to fight him, because it's, by your standards, "unnecessary". It irritates him. You're a worthy opponent, you've clashed blades with so many others, why not him?
He's interested—and there are few things other than fighting that can hold his attention for long. And he'll fight you, spar with you—anything. If not, the urge to will itch at him unbearably. His fingers almost twitch, holding the handle of his sword as he observes you clean your blade.
He wants to fight with you already, to see how you carry yourself to understand you. And again, you just sit there, minding your own business, as if you haven't already denied him the opportunity more than ten times in the past month.