Gene pulls Tony close when he slumps against him, running his fingers through Tony's hair in a soothing manner for a moment...until he remembers that Raine is like, right there. Welp. Oops.

Tony's words send his own gut twisting. Tony had told him about Extremis and the basics of how it worked, the nanobots that had fixed him up and repaired his heart. If they're burned out... "Are you going to be okay?" he asks, a bit of panic creeping into his voice. Hey, he doesn't know how your creepy augments work!