NL5 blind battle with 4th highest flush and board pairs on turn

[Saxatilis]

Only 2 hands on villain so no reads but plays passive preflop and flop then sudden aggression on turn

PokerStars No-Limit Hold'em, $0.05 BB (6 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($5)
UTG ($6.03)
MP ($3.52)
CO ($8.41)
Button ($1.85)
SB ($2.50)

Preflop: Hero is BB with 9[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/spade.gif[/img].
<font color="#666666">4 folds</font>, SB completes, Hero checks.

Flop: ($0.10) 4[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $0.2</font>, SB calls $0.20.

Turn: ($0.50) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $0.4</font>, SB raises to $1.2</font>, <font color="#CC3333">Hero???