Derek truly isn't intending to exert his power over the other wolf, and part of him wants to apologize but he's an alpha. He can't really help it. All he can do is push the wolf aside as best he can.

"That's good," Derek tells him. The way Biffy speaks makes Derek think he may have come from another time, and it makes him curious. "Where did you come from? If you don't mind me asking, that is."