Villain is a good LAG reg. Not really any dynamic between us.

SB ($553)
Hero ($400)
UTG ($400)
UTG+1 ($782)
CO ($424)
BTN ($628)

Dealt to Hero K Q
fold, fold, CO raises to $12, fold, fold, Hero calls $8

FLOP ($26) 3 4 3
Hero checks, CO bets $21, Hero calls $21

TURN ($68) 3 4 3 T
Hero checks, CO checks

RIVER ($68) 3 4 3 T J
Hero checks, CO bets $42, Hero raises to $156, CO raises to $391 (AI), Hero snaps it off???