50nl: hand vs fish when the flush hits the river

[barryc83]

Villain is like 48/20/2 over this 150 hand session thus far. He's a fish, but more stationish, not a bluffer. IS this a call just from a pure odds standpoint???

Poker Stars - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 4 Players - (LegoPoker HH Converter)

SB: $67.50
BB: $26.80
UTG: $48.70
Hero (BTN): $65.65

Preflop: Hero is dealt K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] (4 Players)
UTG calls $0.50, <font color="red">Hero raises to $2.50</font>, SB folds, BB calls $2.00, UTG calls $2.00

Flop: ($7.75) T[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/heart.gif[/img] (3 Players)
BB checks, UTG checks, <font color="red">Hero bets $5.50</font>, BB calls $5.50, UTG calls $5.50

Turn: ($24.25) 8[img]/images/graemlins/spade.gif[/img] (3 Players)
BB checks, UTG checks, <font color="red">Hero bets $16.00</font>, BB calls $16.00, UTG calls $16.00

River: ($72.25) 3[img]/images/graemlins/heart.gif[/img] (3 Players)
<font color="red">BB bets all-in for $2.80</font>, <font color="red">UTG raises all-in to $24.70</font>, Hero ???