Em, INTJ, Slytherin. All her nights were full of song, and by day she prayed for silence. Previously florencewel.
My Hurt Doctor Theory:
He’s an alt!reality Doctor, created when he had a choice between destroying Gallifrey and not destroying Gallifrey. He was the one who DIDN’T destroy Gallifrey and thus the entire universe was ripped apart by the Time War.
He has crossed into the prime Universe to get the Doctor of THIS universe to help rectify the situation, which means they need to go back to THE MOMENT (which is a device as well as an event???) and make the better decision.