I love how everyone had suspicions about Bertilak (even if everyone wasn't sure what that would mean). On the repentance angle--we talked about this a bit on Wednesday, and while I think you're right to point out that repentance is central to the poem; doesn't Gawain take that to the extreme? He says he'll never be able to atone or repent, which, apart from raising serious theological issues, is just suggestive of a troubling attitude towards his mistakes.