Taking Advantage of Mr. Preflop Aggressor

[that_pope]

Villain in this hand has been going absolutely crazy preflop, open raising close to or above 50% of the possible hands preflop when it is unopened to him for at least 3 orbits. He does so again in early MP, and I threebet in the CO with 66. Everyone folds, he 4 bets, and I call.

Flop comes AQQ, and he bets, and I call. This flop either hit him huge, or he is scared, especially since I rarely 3 bet.

Turn comes a 3, suits irrelevent, he bets, and I raise.....

Thoughts?