Flat flop to begin with.

Flop is a great spot to just call. One of the awesome things about 3bet pots is that you can very easily get all the money in without a raise since the pot is already inflated preflop. Especially with a hand like this where you're not really afraid of any turns (and it's hard for him to have a flush draw with the Kd out there) just call and let your opponent barrel into you. If he checks then you can start betting to make sure all the money goes in (or he folds).

By raising flop you put him in a tough spot with some draws but you also make it really easy for him to fold out his bluffs and worse value hands. Given he has 11% 3bet over 3.5k hands I'd expect him to have a ton of air on this board that you want him to keep barrelling.

As played, when he 3bets the flop it's pretty gross. This is one of the strongest hands you show up with here and you're getting decent odds after putting in the flop raise so I would call, though I would expect villain's range to be pretty strong so I'm not thrilled about it.

Heads up, top top, wet board, 120bb. Pretty clear line and will not be folding here ever.

Expect to see more draws than made hands. There are just no 2 pairs.