NL200 - 2X Pot Donk into my trips on the river??? Can I fold?

[MysteryV]

Villain is 32/19/2.2 over 82 hands w/ Infinite river aggression.

I've been pretty active and am running 25/19/2.5

Is this line ever a bluff?

Full Tilt Poker, $1/$2 NL Hold'em Cash Game, 4 Players
LeggoPoker.com - Hand History Converter

BB: $382.35
UTG: $200
Hero (BTN): $245.35
SB: $242.75

Pre-Flop: 7[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BTN)
UTG folds, <font color="red">Hero raises to $7</font>, SB folds, BB calls $5

Flop: ($15) 6[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/heart.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $11</font>, BB calls $11

Turn: ($37) Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $20</font>, BB calls $20

River: ($77) 8[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">BB bets $150</font>

Hero is confused???