nl25 QQ overpair and flush draw

[mop06]

Villain is 50/6 over about 70 hands.

Full Tilt Poker - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 5 Players - (LegoPoker HH Converter)

SB: $26.10
Hero (BB): $27.50
UTG: $23.95
CO: $27.60
BTN: $26.85

Preflop: Hero is dealt Q[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (5 Players)
UTG raises to $0.85, CO calls $0.85, BTN calls $0.85, SB folds, Hero raises to $4.35, UTG folds, CO calls $3.50, BTN folds

Flop: ($10.50) 8[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero bets $7.50, CO raises all-in to $23.25, Hero ???