In a few moments, Claire would realize what he said about the angels being annoyed that it was a Winchester child made perfect sense. In a few moments, she'd see through the terrifying factors that went into this whole 'prophecy' and accept that maybe Rory's going away for a week was a good thing. That being on the island was a good thing.
But the second the word Christ sank into her brain, all the color drained from Claire's face. A tidal wave hit her, glossing her eyes. She shot up from her chair and lunged for the nearby garbage can, tossing up the tea and PBJ she'd eaten an hour ago in one breath.