...is this the part where you tell me I'm absolutely not going to be the one that stays with you? Because I will. But it feels like a thing you're gonna argue against. [It becomes a matter of which thing Josh decides is more (most?) important, he thinks:

The trust he already has with Bob
VS
His (valid) concern about hurting him.

Bob has found that, even without being Sentry, some of the powers he has are a lot more... inactive than others? Like the healing factor. Which he hasn't forgotten about since he realized it was even a thing. He's going to use it to his advantage, he just... maybe has to find the right leverage to get Josh to agree to it.]