50NL - Tough turn

[mookboi]

Poker Stars - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 5 Players - (LegoPoker Hand History Converter)

SB: $6.40
Hero (BB): $52.25
UTG: $28.60
CO: $57.05
BTN: $121.40

Preflop: Hero is dealt K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] (5 Players)
UTG calls $0.50, CO calls $0.50, 2 folds, <font color="red">Hero raises to $3.50</font>, UTG calls $3.00, CO calls $3.00

Flop: ($10.75) A[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/spade.gif[/img] (3 Players)
<font color="red">Hero bets $8.50</font>, UTG folds, CO calls $8.50

Turn: ($27.75) Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $20.25</font>, <font color="red">CO raises all-in to $45.05</font>, Hero calls all-in for $20.00
Uncalled bet of $4.80 returned to CO

Villain is not a total fish. 42/12/1.3, good SD #s.

I had $40 going into the turn. He covered. His turn aggression is .73 - 30%, and he calls down cbets light - 32% fold to cbet.

I honestly had no idea what to do going into this turn.