Steve pretty much sits through the racing heart and stammering, and through the silence followed by what is a decidedly offended noise.

He even keeps his mouth shut through the apology, but then his eyebrows grow up. "I don't think I'm who he's playing with," he pretty much drawls. Why the drawl?

Because that's such a stupid apology, verbalized statement, and also: fits the whole making fucking deals to keep him safe. And he's generally, overall, annoyed (though in fairness, most of that's directed at Zerxus because he's who is right there and it's pretty shallow irritation). "At least not as any kinda primary objective."