3bets with 2nd pair against loose passive player

[v1k]

villian 37/9/0.3
Party Poker, $0.25/$0.50 NL Hold'em Cash Game, 5 Players
LeggoPoker Hand History Converter

Hero (BB): $48.75
UTG: $30.32
CO: $19
BTN: $38.49
SB: $50.43


Pre-Flop: Q[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/heart.gif[/img] dealt to Hero (BB)
UTG folds, CO calls $0.50, 2 folds, Hero checks

Flop: ($1.25) K[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $1</font>, CO calls $1

Turn: ($3.25) 2[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $2.50</font>, CO calls $2.50

River: ($8.25) 4[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $3.50</font>
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