6.50 Fold AA here?

[mikesh]

I've been dealt JJ and QQ within the last 3 hands and re-raised to take the pot PF with them, so I suspect the CO thinks I'm raising with junk. I check the turn because I'm convinced he called my raise after the flop to chase his flush, which I suspect he now has. Or am I being paranoid? What else could his river bet be?

PokerStars No-Limit Hold'em Tourney, Big Blind is t50 (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP2 (t1395)
CO (t3180)
Hero (t1780)
SB (t2669)
BB (t2171)
UTG (t1165)
MP1 (t1140)

Preflop: Hero is Button with A[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, MP1 calls t50, MP2 calls t50, CO calls t50, <font color="#CC3333">Hero raises to t300</font>, <font color="#666666">2 folds</font>, MP1 folds, MP2 folds, CO calls t250.

Flop: (t775) 3[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
CO checks, <font color="#CC3333">Hero bets t450</font>, CO calls t450.

Turn: (t1675) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
CO checks, Hero checks.

River: (t1675) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">CO bets t750</font>, Hero ?.