Peter shakes his head. It answers both Mr. Stark's apology and then the subsequent question, but Peter starts with the apology because he doesn't need it.

"It's not your fault. You guys did your best. That's all anybody can ask for. And yeah it sucks now I'll have to figure out how to make May feel better about all that time she probably thought I was dead, but that's my problem. If not for you guys, I wouldn't be here to worry about it, would I?"

His eyes shift down. May still thinks he's dead, for the moment because, "no. Not yet," he answers honestly even though he has a feeling that that's not the answer Mr. Stark is hoping to hear. "But it's okay. I mean, we'll get me back as soon as we can, right? I couldn't really ask for more than that. I'm just glad you're okay. I thought...I mean, you know..." he says, deflating a little and looking ashamed for bringing up the fact that he was almost certain Mr. Stark was about to meet an untimely end a little while back, there.