3/6 standard set fold???

[Tokyo!!]

villain is preposterous. playing even laggier than usual but i have no clue what he has here. 3-bettor is a 38/18 fish who may be coming down from tilt, but has recently stopped spewing.

PokerStars No-Limit Hold'em, $6 BB (6 handed) internettexasholdem.com

MP ($637.75)
CO ($425.10)
Button ($832)
SB ($1936.70)
BB ($585)
Hero ($1226)

Preflop: Hero is UTG with 8[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises to $21</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">CO raises to $54</font>, Button calls $54, <font color="#666666">2 folds</font>, Hero calls $33.

Flop: ($171) J[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, CO checks, Button checks.

Turn: ($171) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $114</font>, CO folds, Button calls $114.

River: ($399) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $664 (All-In)</font>, Hero folds.

Final Pot: $1063