"I'll help him push forward. We'll continue on like he planned. But I'll help him. We need to get out of this fog Peg. It's no good for him." It wasn't any good for any of them. But his instinct to save Steve wasn't something he could just push away. Bucky would always go to the rescue.
He also knew that there wasn't anyone better than Peggy to keep the little ones safe. He kissed her one more time, almost as if he were preparing himself for the worst, by savoring the best. "I'll park him there and come back for you after. Tell him I'm not taking any argument on that either." With that he was out the door.