Destined to lose this hand?

PokerStars Game #8215683364: Tournament #41910604, $3.00+$0.25 Hold'em No Limit - Level II (15/30) - 2007/01/31 - 17:37:03 (ET)
Table '41910604 1' 6-max Seat #1 is the button
Seat 1: Lennyboy1 (1150 in chips)
Seat 2: quiltyf (3615 in chips)
Seat 3: Joestiv (1470 in chips)
Seat 5: gunnydm (1235 in chips)
Seat 6: k06mars (1530 in chips)
quiltyf: posts small blind 15
Joestiv: posts big blind 30
*** HOLE CARDS ***
Dealt to k06mars [Ad 9s]
gunnydm: folds
k06mars: calls 30
Lennyboy1: folds
quiltyf: folds
Joestiv: checks
*** FLOP *** [Qh Ah 6c]
Joestiv: bets 90
k06mars: calls 90
*** TURN *** [Qh Ah 6c] [4c]
Joestiv: bets 120
k06mars: calls 120
*** RIVER *** [Qh Ah 6c 4c] [2c]
Joestiv: bets 300
k06mars: calls 300
*** SHOW DOWN ***
Joestiv: shows [Tc Kc] (a flush, King high)
k06mars: mucks hand
Joestiv collected 1095 from pot
*** SUMMARY ***
Total pot 1095 | Rake 0
Board [Qh Ah 6c 4c 2c]
Seat 1: Lennyboy1 (button) folded before Flop (didn't bet)
Seat 2: quiltyf (small blind) folded before Flop
Seat 3: Joestiv (big blind) showed [Tc Kc] and won (1095) with a flush, King high
Seat 5: gunnydm folded before Flop (didn't bet)
Seat 6: k06mars mucked [Ad 9s]

Where did I go wrong here - the call preflop? Not raising either of his bets? I figured that was a risky move as he would call with AJ or AT, and I want him to keep betting if he holds a queen. By the time the river comes around, the only draws he might've hit were runner runner, and the way he was betting it didn't seem like that was possible. So..any thoughts?

__________________
1st place, March/April 2008 Sunday League

Fault always lies in the same place, my fine babies: with him weak enough to lay blame.