[Smilin']

I don't hate preflop given Villain's stats. 3-betting light (occasionally) doesn't seem nuts here either, though it pretty much turns your hand into a bluff.

Is Villain aggressive? If so the flop check makes me suspicious, and I might check behind for deception/pot control. But my default would be to bet. However, I check turn for pot control because the board is fairly dry and I can't think of a ton of hands that you beat and that Villain check/calls flop with.

River is a bit alarming, and you no longer beat a 7, but I don't think I can fold to this small bet.