She shook her head. That had been her first thought too.  It was absurd. Infected by a magical creature and doomed not to live eternally like a vampire, or even to turn to a wolf like poor Professor Lupin, but to be dependent, utterly dependent, on a mate just to stay alive.  Who had even heard of such a thing?  It was like some perversion of what Fleur was.  Instead of captivating all men, she was captivated by one.  She’d pine.  She'd wither. She’d die without him.  She was already in almost constant pain.