NL50 AQo taking a passive line with TPTK

[checktheriver]

Over a few hands (~50 or so) Villain was 12/10/3.
I checkraise this on the flop sometimes, here I figured I would call. Villain seemed aggro enough to fire a second barrel at the scare card on the turn, so I called again. Would you have raised/folded at any point in this hand ? Also if you like this line what would you do on a blank river ? Block, c/f ??

Poker Stars, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $134.30
CO: $49
BTN: $69
SB: $55.80
Hero (BB): $62
UTG: $50.50

Pre-Flop: A[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/spade.gif[/img] dealt to Hero (BB)
2 folds, <font color="red">CO raises to $2</font>, 2 folds, Hero calls $1.50

Flop: ($4.25) Q[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $2.50</font>, Hero calls $2.50

Turn: ($9.25) J[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $5.50</font>, Hero calls $5.50