25NL - river decision against a loose-passive

[Prodigy54321]

Full Tilt Poker, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LeggoPoker Hand History Converter

BTN: $61.25
SB: $29.10
Hero (BB): $30.20
UTG: $5.50
CO: $32.75

Pre-Flop: 5[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] dealt to Hero (BB)
UTG folds, CO calls $0.25, 2 folds, Hero checks

Flop: ($0.60) 2[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, CO checks

Turn: ($0.60) 6[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $0.40</font>, <font color="red">CO raises to $1.80</font>, <font color="red">Hero raises to $5.50</font>, CO calls $3.70

River: ($11.60) 2[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $5</font>, <font color="red">CO raises to $27 and is All-In</font>, Hero ???

villain is 53/4/0.25

that AF makes me want to die in this situation

anyone not bet out on the river? check/call instead maybe?