"I don't think he knew that Tyler was a werewolf."

It's not like he can tell like they can. She isn't sure if that makes it better or worse, but at least it's something. She can't justify his behavior any more than that though - even if Stiles hadn't been through what he'd been through, she can't see him punching anyone - on her behalf or not.

"I have no idea. Tyler said that Elena might have told Stiles that Tyler was moving to town and he knows that I was looking for an apartment - he might have put two and two together and gotten five." There's a beat as she shifts, stretching out more so that Bob can hop up onto the couch and settle into the spot between her and Derek. Her fingers curl around his collar, keeping him closer and closing her eyes as she admits the next part. "And the thing is, Tyler and I were never actually together."