Not much history with villain but he seems tagg.

Bodog BB is $.50

Hero is SB ($102)
Villain is BTN ($109)

Preflop: Hero is dealt
3 folds, BTN calls $.50, Hero raises to $2, 1 fold, BTN calls $1.50

Flop ($4.50):
Hero bets $3, BTN calls $3

Turn ($10.50):
Hero bets $7, BTN calls $7

River ($24.50):
Hero?

Fire the 3rd shot to get him to fold 44-88 or flush draws, and if so how much??