Cool it on the river?

[imaptone]

The evil one in the small blind has a Vp of 64% and a pfr of about 2%. The raiser seems compliant with me winning the pot.

I am having trouble knowing when to lay back and this hand is a good example. I find that these late raises seem to mean more having played this level only for less than 10000 hands. Should I check call the river? Bet fold? Bet call and whine like a bitch if I lose?

Party Poker 2/4 Hold'em (10 handed) converter

Preflop: Hero is UTG+1 with A[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img].
UTG folds, Hero calls, UTG+2 folds, MP1 folds, MP2 folds, <font color="#CC3333">MP3 raises</font>, Button folds, SB calls, BB folds, Hero calls.

Flop: (7 SB) 9[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, <font color="#CC3333">MP3 bets</font>, SB calls, <font color="#CC3333">Hero raises</font>, MP3 folds, SB calls.

Turn: (6 BB) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

River: (8 BB) 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">SB raises</font>, Hero calls.

Final Pot: 12 BB