I'd re-reraise the turn, because you have bet quite low on the flop and turn it looks like a double barrel so he could even be doing this with air, as the ace is a scare card. I don't see any point in calling, you're just giving him a chance to improve if he has any piece of the board.

In future I'd raise a little more pf (4bb's) and then 3/4 the flop.

If you re-reraise the turn and he continues to raise you, then I'd say it's an easy fold as your likely beat.