River decision

[GAL]

Villan is 21/17/5 over 175 datamined hands, other than that no real reads.

Prima Poker skin
No Limit Holdem Ring game
Blinds: $1.50/$3
5 players
Converter

Stack sizes:
hero: $295.50
CO: $726.08
Button: $379.28
SB: $597.50
BB: $354.00

Pre-flop: (5 players) hero is UTG with A[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img]
<font color="#cc0000">hero raises to $12</font>, CO calls, 2 folds, BB calls.

Flop: 6[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] ($37.5, 3 players)
BB checks, <font color="#cc0000">hero bets $30</font>, <font color="#cc0000">CO raises to $70</font>, BB folds, hero calls.

Turn: K[img]/images/graemlins/spade.gif[/img] ($177.5, 2 players)
hero checks, CO checks.

River: 5[img]/images/graemlins/club.gif[/img] ($177.5, 2 players)
<font color="#cc0000">

I really wish I had just shoved over his bet on the flop here, I then miss the turn C/R, as played what are we doing on this river ?