This is why I don't like Dean anymore. He used to be so funny and loveable even in his rare moments of being an asshole. Nowdays though, it's like almost everything he says is entitled, arrogant, or just plain douchey. Characters are supposed to be likeable, even when they're being mean, and Dean just isn't anymore. Sam has gotten much better about it since the earlier seasons IMO. As for Castiel, as I've said before, he's manipulative and prideful but if I had screwed myself over like that for someone who treated me like a dog then I'd be bitter too.