two pair facing a turn raise

[b33nz]

villain is 21/17. notes are he is an aggresive player. able to raise with draws/air at times. however, i dont know if he is a winning player or not. i just sat down, but ive played with him before. so if he remembers me he prolly remembers i was a 28/23-ish lag player. i think given the hand, its safe to say he never has two pair/set/straight here.

Full Tilt Poker - No Limit Hold'em Cash Game - $2/$4 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $546.00
BB: $400.00
UTG: $514.00
MP: $444.90
Hero (CO): $406.00
BTN: $433.00

Preflop: Hero is dealt 6[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/club.gif[/img] (6 Players)
2 folds, <font color="red">Hero raises to $14.00</font>, BTN calls $14.00, 2 folds

Flop: ($34) 4[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $26.00</font>, BTN calls $26.00

Turn: ($86) J[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $66.00</font>, <font color="red">BTN raises to $168.00</font>, Hero