NL10 two pair...too agg?

[ottsville]

Villain has been tight for a while and taken some pots earlier in the session. He had just been involved in a couple of hands and seemed to be tilting off his stack...

PokerStars No-Limit Hold'em, $0.10 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB ($9.55)
Hero ($8.50)
UTG ($3.25)
UTG+1 ($11.25)
MP1 ($9.05)
MP2 ($10.30)
CO ($9.90)
Button ($4.25)

Preflop: Hero is BB with 6[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, MP1 calls $0.10, CO calls $0.10, <font color="#666666">1 fold</font>, SB completes, Hero checks.

Flop: ($0.40) 5[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets $0.5</font>, MP1 folds, <font color="#CC3333">CO raises to $2</font>, SB folds, Hero calls $1.50.

Turn: ($4.40) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets $3</font>, <font color="#CC3333">Hero raises to $6.4</font>, CO calls $3.40.

River: ($17.20) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $17.20

Since I'm a nl noob...
-How was my bet sizing on the flop?
-I figured to call the flop raise and reevaluate. Right play or no?
-overall thoughts?

Thanks.

edited for converter wackiness

[Sk00l4m3nts]

EagleEye{73} folds,

wtf?

[ottsville]

converters acting goofy...I just posted another hand that it was all weird on.

[Jurrr]

If he was tilting off his stack then at NL10 this is OK.