Who the fuck said it was the easy way out? It was the smart way. Here you can be patient. Here you can do the good cop thing. Over there? That's a whole lot of waiting for nothing.

[He feels like he already knows what Stiles is going to say to that, because everyone else already has. He heads it off with a roll of his eyes.]

And don't tell me blah blah blah, they were comin' to get us, 'cause you had no way of knowing if that was really gonna happen and how long it would take. None of us did. Face it, Stilinski: all that happened is the rest of you got lucky and I didn't. Congratu-fucking-lations.

[He doesn't know why he's arguing it. He doesn't know what he wants at the end of this. For Stiles to forgive him? To be his friend? No. Maybe he just wants to make sure that whatever he's going to go down as, it's really him.]