2-4 NL a bit deep, QQ RR'ed villain likes to bet apparently

[shpanko]

Full Tilt Poker - Pot Limit Hold'em Cash Game - $2/$4 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $384.90
BB: $1,530.10
UTG: $463.00
MP: $679.50
CO: $374.00
Hero (BTN): $671.90

Reads: <font color="blue">Villain is on the laggy side but definitely not bad. He runs like 38/21/3 and we haven't really tangled yet. I may have three-bet him once or vice versa but no big pots. This hand felt weird and I wasn't really sure what to do so I called down. I'm running like 23/17/2 at this table. Anyway, thoughts?</font>

Preflop: Hero is dealt Q[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/heart.gif[/img] (6 Players)
UTG folds, <font color="red">MP raises to $8.00</font>, CO folds, <font color="red">Hero raises to $30.00</font>, 2 folds, MP calls $22.00

Flop: ($66) 3[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">MP bets $66.00</font>, Hero calls $66.00

Turn: ($198) J[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">MP bets $99.00</font>, Hero calls $99.00

River: ($396) J[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">MP bets $198.00</font>, Hero calls $198.00

Pot Size: $792.00 ($3 Rake)

As you can see he's using the "bet pot button" on the flop and the "bet half pot button" on the turn and river.