Tony closes his eyes and sees what he knew he would: the wormhole. He knows what it's like to be scared for everyone you love. His eyes snap back open, and he tucks the pillow under his chin as he tries to formulate words back.
"I'm not going to die. But if you go in alone, you might." Just like he really thought he might have with this Mandarin mess. Reluctantly, he turns back over, trying to keep his expression clear. It's probably unsuccessful, he never had a good pokerface. "I know you're prepared to make that call, but I'm not." He's not about to let Steve go in there without backup if all of what he's saying is true.