Getting Minraised on Dry Flop - Totally Lost

[GTSamIAm]

Hate min-raising. I wonder if this is the sort of hand I should be felting? Personally I don't like it because I think the pot size is too small. When he bets $19 on turn, I'm not putting him on more than a pair of jacks. Knowing that, I think I bet way too much on the river.

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

BB: $119.45
UTG: $161.95
MP: $160.55
Hero (CO): $107.60
BTN: $142.95
SB: $106.15

Pre-Flop: A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] dealt to Hero (CO)
2 folds, <font color="red">Hero raises to $3.50</font>, BTN calls $3.50, 2 folds

Flop: ($8.50) 4[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $6</font>, <font color="red">BTN raises to $12</font>, Hero calls $6

Turn: ($32.50) 7[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $19</font>, Hero calls $19

River: ($70.50) K[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $40</font>, BTN folds

Results: $70.50 Pot ($3 Rake)
Hero mucked A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] and WON $67.50 (+$33 NET)