Steve looked away apologetically, cupping the back of his neck. "...If you're sure," he agreed. She wasn't going to take it well. But Tony looked so determined. He didn't know how to handle this. Villans and plots had reason behind them. He could find a way to stop those things. There was some end goal. This was just an on going horror, with no foreseeable end.
"...Don't leave again," he breathed finally, quiet, barely a whisper, and his gaze was fixed around Tony's feet.