Yet, he was absolutely sure she would be the reason for his downfall. And he was right. She was the reason he'd been discovered and forced to desert. She was the reason why Draco has been ordered to find him and bring his head to the Dark Lord. Her unstoppable need to save the world made her come to the bar she knew the Death Eaters would be meeting, planning their attack on the Muggles running it. It blew his cover and no lives had been spared on that day. 