I'm a bit lost post-flop here. Villain's running 23/18/2.8 over a bunch of hands, raises 18% utg, cbets 65%. I've seen him make some questionable hero calls but we have no history I'm aware of.

Full Tilt No-Limit Hold'em, $4.00 BB (6 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

saw flop

UTG ($400)
MP ($267)
Hero (CO) ($457.10)
Button ($368.30)
SB ($120.80)
BB ($445.30)

Preflop: Hero is CO with J, J
UTG bets $14, 1 fold, Hero calls $14, 3 folds

Flop: ($34) K, K, 4 (2 players)
UTG checks, Hero bets $20, UTG calls $20

Turn: ($74) 2 (2 players)
UTG checks, Hero bets $40, UTG raises to $125, Hero...