Frankie has been half-braced for this all along, remembers being in her position himself; and even if her lunge is a little off, he moves to meet her just in case she veers off, in case she tries to make a break for it. The look on her face is enough to tell him how she feels about the idea of blood, so it doesn't seem unreasonable that she could flee-- but if she does, he knows, it's bound to end in trouble for the both of them. He does put an arm up to catch her if she goes for his throat, because he'd rather not be bit at all but if he has to, better to have it somewhere less dangerous and less conspicuous.

Frankie may be merely human now, but he has the advantage of experience; caught unawares she could have bowled him over and eaten him or whatever she liked. But as it is he holds his own, not trying to push her away but to get a hold on her, to still her movements. He tries not to think of Alison Bromley struggling against him, though the roles are reversed. And he's doing the right thing, now, because wrong has already been done.

"I don't want to force you," he says through gritted teeth, coldly forceful. "But the longer you go without the worse you're gonna get. Much more and I might not be able to fix it."