His first question, after the battle that leaves him all but helpless, is how.

How did this girl, this unknown scavenger who he'd first thought was simply in the wrong place at the wrong time, manage to win a lightsaber duel against him? How did she resist his brutal probe, break her bonds, mind-trick his stormtroopers at least twice, and call the Skywalker saber to herself in that final fight when he was the descendant of Skywalker, all while completely untrained?!

Then he remembers an old Jedi adage: "There is no such thing as a coincidence."

His question changes from how to why.