At those words, Stiles sets his jaw, and looks completely and totally rebellious. Yeah, wrong tack to take, Batman.

"Not ready, huh? Well, too fuckin' bad, because it's happening now. So I'm helping now. And excuse you, but I'll rely on Derek all I want. You don't get it. And I don't expect you to get it."

Because Derek had declared them pack. And that was all the difference in the world.