Turned Str8 but flush came, too

[recallme]

Cryptologic
No Limit Holdem Ring game
Blinds: $2/$5
6 players
Converter

Stack sizes:
UTG: $706.31
UTG+1: $403.75
CO: $400
Button: $535.15
SB: $186.56
Hero: $1064.90

Pre-flop: (6 players) Hero is BB with 4[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">UTG raises to $10</font>, UTG+1 calls, CO calls, 2 folds, Hero calls.

Flop: A[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] ($42, 4 players)
Hero checks, <font color="#cc0000">UTG bets $15</font>, UTG+1 folds, CO calls, Hero calls.

Turn: 2[img]/images/graemlins/heart.gif[/img] ($87, 3 players)
Hero checks, <font color="#cc0000">UTG bets $75</font>, CO folds, <font color="#cc0000">Hero raises to $220</font>, <font color="#cc0000">UTG raises all-in $681.31</font>, Hero has 460 back to call

If CO wouldn`t have folded i would have tried to get to a cheap SD, but no i am in a tough desicion.
Villainis 40/11/3/7/2 SD: 23/72 over 140 and i haven`t seen him going out of line till now