[Aceium]

I would probably fire the turn because when you check it here, it looks like you failed at making a play on the flop - so he's going to fire with a very wide range here and try to take the hand away from you. If you had made a significant bet on the turn and he still raised you, I would be more inclined to believe the he actually had a king. I would not fold in this spot unless villan had been showing down winners.