The words of encouragement die in his throat as soon as he senses Harry tensing up. He doesn't need to see how pale he suddenly gets, because people would be surprised at the sort of things Remus can sense when he's caught off guard and Moony catches whiff of something. He had expected anger, sure, but not this reaction. Not that panic that seems to fill Harry and freezes him on the spot.

As Harry begins to speak again, Remus removes his hand from his shoulder and stands to pace. He feels a little dizzy as he does so, and his mouth feels so dry as his mind keeps reeling, but he forces himself to focus on Harry's words for now.

That is, until he sees how his hand shot up and quickly Remus moves next to him again as he frowns in concern. Merlin, how he wishes he knew what was wrong to help him with this. "I don't... What happened?"