50NL - 33, how awful is this? fold flop?

[PrimordialAA]

Is this an insta-fold on the flop, or if not folding then reraising. I feel like I should never call the flop, and prob. def. not the turn, Thanks for advice




Full Tilt No-Limit Hold'em, $0.50 BB (5 handed) Full Tilt Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($48.50)
Hero ($49.75)
Button ($37.75)
SB ($66.05)
BB ($52.40)

Preflop: Hero is MP with 3[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $1.75</font>, Button calls $1.75, <font color="#666666">2 folds</font>.

Flop: ($4.25) 6[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $3.45</font>, <font color="#CC3333">Button raises to $6.9</font>, Hero calls $3.45.

Turn: ($18.05) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $10.5</font>, Hero calls $10.50.

River: ($39.05) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

Final Pot: $39.05