[ It feels wrong that Steve reaches for his hand, because Tony doesn't feel like he deserves it. Not when it feels like he's here when their son isn't - when Peter should be the one that should be here instead. ]

I don't know. [ The words sound pained, because this isn't the first time Tony has thought of this. It's one of the many reasons why his head is in such a dark place, why he hates himself so much, even if he has been doing a relatively good job not saying anything. ] He said it was the only way. But how can it be, when the stones don't even exist anymore?

[ He runs his free hand along his face, as if that will help him think but it's like every other time. Nothing comes to mind, and he hates it. ]

Without the stones, we can't undo any of this.