$600 NL uggggggggh I'm such a nit

[Eagles]

Villain is an okay tag. Haven't played much with him but he's pretty tight like 19/16 or something. He stacked me earlier when I raised button he 3bet AA i called with JJ flop was k high two one he bet i called. Turn put a second FD + a straight draw on board he shoved I called. Not sure about that hand either ... didn't realize he was as tight as he was pf. Anyways on to the hand.


Party Poker, $3/$6 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

Hero (CO): $600
BTN: $967.90
SB: $845.90
BB: $591
UTG: $702.85
MP: $877.25

Pre-Flop: Q[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] dealt to Hero (CO)
<font color="red">UTG raises to $21</font>, MP folds, <font color="red">Hero raises to $72</font>, 3 folds, UTG calls $51

Flop: ($153) J[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] (2 Players)
UTG checks, Hero checks

Turn: ($153) K[img]/images/graemlins/club.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $100</font>, UTG calls $100

River: ($353) J[img]/images/graemlins/diamond.gif[/img] (2 Players)
UTG checks, Hero?
Am i a nit for wanting to check behind here... I think he has a boat an awful lot and I'm not sure how often he calls with AK/AA