Sam doesn't tell Dean everything about what happened while they were separated. Specifically, he doesn't tell him what the YED showed him about their mother's death, that Mary recognised the Demon, that Sam's infant self had demonic blood dripped into his mouth. It's almost like old times, with secret-keeping between the boys after they've started sharing absolutely everything this season, and another tantalising little snippet of information to leave hanging ready for season three

How can you be sure about this? You see Sam and Dean talk at the table, and you only see the end of the conversation: and then you and bobby showed up. We don't really know what Sam told his brother, do we?

other then that: fantastic review <3