Act how? Throw around accusations he'd just immediately agree with? Demand answers he doesn't have? Toss fuel on his already-raging self-hatred fire?

[ Tony rakes a hand through his hair, clearly a movement borne of stress. The gravity of this is starting to truly settle in, but he's not lying. For now, he has no inclination to do anything with this information but absorb it. ]

Gimme a break. He's my friend.