I would be inclined to fold pre-flop. If we were on the button with the whale on the cutoff, I would be a bit more inclined to call, but UTG has position on you and that's a big deal here with KQo.

Your turn bet is good, though I would have preferred a larger size. A lot of players would check here incorrectly.

This is almost always a strong hand slowplayed on the flop. He could have been trying to check-raise the button whale, or he could have been trying to trap with something like QsJs, but I don't believe he's ever folding here, and I don't think he ever has a hand that you beat.