Mel could choose not to tell, and keep Davos in line. Who was left to behind to say anything? Ramsay killed em all, it seems. On a related note, where the hell did all those sell-swords go? South? Back to the wall? Another route? It's been bothering me.

The show didn't do a good job of showing how Melisandre is not always right, until today. She'll continue to be the ll-seeing there