[10NL] - middle set - good laydown on river?

[maciczka]

Villain is 37/23/1.7 over 128 hands. How bad was my play on flop? I shouldn't slowplay that, right? What about other streets. How often Im behind at that kind of boards on river?

Prima Poker skin
No Limit Holdem Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $9.50
UTG+1: $10.00
CO: $17.30
Button: $15.51
Hero: $10.47
BB: $12.57

Pre-flop: (6 players) Hero is SB with 8[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/spade.gif[/img]
2 folds, <font color="#cc0000">CO raises to $0.4</font>, Button folds, Hero calls, BB folds.

Flop: 9[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/club.gif[/img] ($0.9, 2 players)
Hero checks, <font color="#cc0000">CO bets $0.45</font>, <font color="#cc0000">Hero raises to $1.12</font>, CO calls.

Turn: T[img]/images/graemlins/heart.gif[/img] ($3.14, 2 players)
<font color="#cc0000">Hero bets $1.57</font>, CO calls.

River: 3[img]/images/graemlins/heart.gif[/img] ($6.28, 2 players)
Hero checks, <font color="#cc0000">CO bets $3.14</font>, Hero folds.
Uncalled bets: $3.14 returned to CO.

Results:
Final pot: $6.28