What would you do?

[frenchfish]

Poker Stars - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker Hand History Converter)

Hero (SB): $108.80
BB: $101.35
UTG: $150.25
MP: $90.00
CO: $99.90
BTN: $233.85

Preflop: Hero is dealt 7[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] (6 Players)
UTG folds, MP calls $1.00, CO folds, BTN calls $1.00, Hero calls $0.50, BB checks

Flop: ($4) 2[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/spade.gif[/img] (4 Players)
<font color="red">Hero bets $2.50</font>, BB folds, MP calls $2.50, BTN calls $2.50

Turn: ($11.50) 5[img]/images/graemlins/club.gif[/img] (3 Players)
<font color="red">Hero bets $7.00</font>, MP calls $7.00, BTN calls $7.00

River: ($32.50) 3[img]/images/graemlins/diamond.gif[/img] (3 Players)
<font color="red">Hero ???

I m not sure if what i did was ok ,want to c what u guys would do in that spot.

Button is a loose passive/passive CS , no read on other vilain.

damn why my writting is red?? [img]/images/graemlins/confused.gif[/img]