He wasn't anticipating what came next. His ears actually cupped forward to hear her broken voice as it gave him permission to exile her, to murder her. A new astonishment took over the prince's face, and he became even more frozen to the cold ground than he'd been earlier. Did she really not care which option he picked? Not that he was in any position to choose, or any mind to. She just... gave up, puddling at his feet like the far off spring thaw. There was no hint of optimism, no bright side to anything on her tongue. It felt wrong against what little he'd come to know about the pale girl. Maybe now he knew too much.
There was a silence in the air then, as he just stared over at her. She could have endangered them all, she still could be, and yet his mind began to struggle toward some reasonable doubt, some key element in her story that could quiet his fear, and perhaps that of the pack, if he chose to tell them. Cernan couldn't imagine keeping something so important from his parents; he rarely kept anything from them. He'd never been given a reason to.
Finally, slowly, the Cove boy pulled himself loose. His head began to shake. "No I-" His tongue still wasn't quite there. "Would... you really let me kill you?" As soon as the dumbfounded question was out, his expression changed from confused to shocked. "I won't," he added hurriedly, just in case she'd taken it as some kind of display of intention to take up her offer, "but..." The youth's eyes pulled away, jumping about the landscape while thoughts skittered about in his mind. He was not well versed in disease by any means, but he kept trying to turn over the details anyway. "I don't know if it could be on you or not," he explained, still keeping his distance but feeling at least a touch calmer. "You said it was a long time ago," and I can't smell it, "...and, you never felt sick?" There was some kind of hope hidden deep in his inquisitive low tones. He wanted to ask Ma, but that would mean explaining all of this to her, and while the Alphess was a kind soul, he didn't know how she would react. The whole scenario was very much unprecedented.