tptk vs potsizebet river

[fullcontact]

Titan No-Limit Hold'em, $0.50/$1.00BB (Titan HH Converter by Kreatief)

MP3 ($191.10)
CO ($88.40)
Button ($189.33)
SB ($100.00)
BB ($99.00) (Hero)

Preflop: Hero is BB with T[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img]
<font color="#666666">2 folds</font>, Button calls $1.00, <font color="#666666">1 folds</font>, <font color="#CC3333">Hero raises to 3.0</font>, Button calls $3.00,

Flop: T[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] ( $8.5 )
<font color="#CC3333">Hero bets $6.00</font>, Button calls $6.00,

Turn: 9[img]/images/graemlins/heart.gif[/img] ( $20.5 )
<font color="#CC3333">Hero bets $12.00</font>, Button calls $12.00,

River: 5[img]/images/graemlins/heart.gif[/img] ( $44.5 )
Hero checks, <font color="#CC3333">Button bets $43.00</font>,


CALL OR FOLD?

45/ 22 / 1.8
150 Hands


hmmm, set?
higher bet on turn?