NL 50: Maybe I overplayed my draw

[Dr_Mabuse101]

Vilian is super aggro and super laggy, like 25/21
Ultimate Bet
No Limit Holdem Ring game
Blinds: $0.25./$0.50.
5 players
Converter

Stack sizes:
UTG: $50.50
CO: $50.70
Hero: $67.10
SB: $27.50
BB: $49.80

Pre-flop: (5 players) Hero is Button with 3[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/diamond.gif[/img]
UTG folds, <font color="#cc0000">CO raises to $1.75</font>, Hero calls, 2 folds.

Flop: 7[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/diamond.gif[/img] ($4.25, 2 players)
<font color="#cc0000">CO bets $3</font>, Hero calls.

Turn: 6[img]/images/graemlins/club.gif[/img] ($10.25, 2 players)
<font color="#cc0000">CO bets $6.9</font>, <font color="#cc0000">Hero raises to $20</font>, <font color="#cc0000">CO raises all-in $45.95</font>, Hero calls.
Any comments ? Turn raise ok ?