Deepish vs. Tarnkt

[Requin]

He's a regular right? Anyways he seems kinda nitty preflop, have him at 17.5/10 over 450 hands, but not bad postflop (nothing stands out). I had been very inline in terms of preflop reraising but hadn't been sitting down that long. I checked the flop, which I can do with a fair range including AA or TT, I think he knows this. When I bet the turn I did it repping only JT (unlikely given how I'd been playing) or TT. Then he raised me, and I figured that had to be a set or air, since I was repping a set or air, right? (And even if it is right, am I giving too much credit to think villain thinks this way?) So I decided to float it and see if he shoved the river. Reasonable? Should I be giving more thought to the fact that there's a double FD out there (I often ignore that in reraised pots)? Thoughts on everything appreciated. BTW for you lazy ones there's about 700 total behind by the river.

Party Poker
No Limit Holdem Ring game
Blinds: $3/$6
5 players
Converter

Stack sizes:
UTG: $1636.10
Hero: $1162.75
Button: $697.60
SB: $1030.55
BB: $690.60

Pre-flop: (5 players) Hero is CO with K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">UTG raises to $22</font>, <font color="#cc0000">Hero raises to $70</font>, 3 folds, UTG calls.

Flop: 4[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] ($149, 2 players)
UTG checks, Hero checks.

Turn: T[img]/images/graemlins/heart.gif[/img] ($149, 2 players)
UTG checks, <font color="#cc0000">Hero bets $125</font>, <font color="#cc0000">UTG raises to $377</font>, Hero calls.

River: 9[img]/images/graemlins/diamond.gif[/img] ($903, 2 players)
<font color="#cc0000">UTG bets $555</font>, Hero folds.
Uncalled bets: $555 returned to UTG.

Results:
Final pot: $903