Are we foldiing two pair here??

[FletchJr.]

here's a hand from a fairly deep session.

The opponent, wasnt' very aggressive but he wasn't passive either. He was playing very well.

What are your thoughts on the Turn action, and how would you play the hand out?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.50/$1
2 players
Converter

Stack sizes:
Hero: $277.15
BB: $331.55

Pre-flop: (2 players) Hero is SB with 8[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/heart.gif[/img]
<font color="#cc0000">Hero raises to $3</font>, BB calls.

Flop: 8[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/club.gif[/img] ($6, 2 players)
BB checks, <font color="#cc0000">Hero bets $6</font>, BB calls.

Turn: A[img]/images/graemlins/spade.gif[/img] ($18, 2 players)
BB checks, <font color="#cc0000">Hero bets $18</font>, <font color="#cc0000">BB raises to $50</font>, Hero's Action???