A Small Flush Gone Awry

[DrPublo]

I had been running pretty card dead, so my image must be tighter than a 12 yr old girl. Do I call?

Party Poker No-Limit Hold'em, $ Hero (8 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

SB ($30.52)
Hero ($106.75)
UTG ($351.45)
UTG+1 ($72.35)
MP1 ($120.65)
MP2 ($155.4)
CO ($146.19)
Button ($101.1)

Preflop: Hero is BB with 6[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $0.5.
<font color="#666666">2 folds</font>, MP1 calls $1, <font color="#666666">3 folds</font>, SB (poster) completes, Hero checks.

Flop: ($3) 3[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $2</font>, MP1 calls $2, SB folds.

Turn: ($7) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP1 checks.

River: ($7) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP1 bets $3</font>, <font color="#CC3333">Hero raises to $15</font>, <font color="#CC3333">MP1 raises to $45</font>, Hero?

I'm not sure I can put him on a hand I'm beating. At the same time, I don't need the nuts to call here. I'm not sure what the dividing line is between calling and folding.

All comments welcome.

The Doc