[He feels the relief a split second before he realizes what's happening. Feels the pain fade back, still there, still a dull thudding against the inside of his skull, but instead of burning through him, making him want to start checking and making sure his skull wasn't ripping apart on him, it was more of an annoyance than anything else.

So, he opens his eyes again, looking at Charles carefully, weighing whether or not he wanted to snap at him or say thank you. To pull away and say he didn't want him poking around his head, for fear of what he might find still far too close to the surface for his liking, or to simply... accept it.

In the end, he's just accepting.]

I'd take care of it. [He says after a moment, unable to keep looking at Charles, instead going back to staring down his helmet, fingers tapping restlessly against the metal.] ... I wouldn't lie about it, there's no point. But I'd still take care of it. Them. Rhodey and Pepper.

[Suddenly, he has to rub at his face, to screw up his eyes and nose and just rub the back of his wrist against the crease between his eyebrows]

Lying about it doesn't change anything.