"Yeah..." Seth agrees. Part of his problem was that, well, even if he had a pretty strong suspicion it was the powers doing it, he can't just give them up, he has to give them to someone. And by the time he thought he should do so, he'd felt too shitty to actually do it.

"You can keep that one, I don't need it," he adds, just so they're on the same page. Payback for when he convinced Peter to give up his original power maybe, even if he got it back.