Pietro didn't want forgiveness...or at least, did not expect it. All he wanted was to try to make Tony feel better, and he could see what a hideous job he was doing of it.
He let himself be shoved, and pushed away, still trying to hold onto him.
"Please. Please, just let me help you. I don't want anything from you. I just want to help. Please let me help you, Tony," he pleaded in a rush.