$50NL FD+overs Probably behind

[Spleen]

Villian is a multi-tabling regular, my HUD was down but I don't remember him ever being out of line. This is fairly standard but I felt like I was behind, do I let this go? Edit: He instaraised my flop bet.


No Limit Holdem Ring game
Blinds: $0.25./$0.50.
6 players
Converter

Stack sizes:
Hero: $51
UTG+1: $23.70
CO: $50.20
Button: $46.75
SB: $91.55
BB: $55.80

Pre-flop: (6 players) Hero is UTG with A[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/diamond.gif[/img]
<font color="#cc0000">Hero raises to $1.75</font>, 2 folds, Button calls, 2 folds.

Flop: 6[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/spade.gif[/img] ($4.25, 2 players)
<font color="#cc0000">Hero bets $4.25</font>, <font color="#cc0000">Button raises to $12.25</font>, <font color="#cc0000">Hero raises all-in $49.25</font>, <font color="#cc0000">Button calls all-in $45</font>.
Uncalled bets: $45 returned to Button.