NL 5 - Help I'm spewing with top pair

[rjacobs003]

Utter spew I know but at what point do you give this up. Rip away! Villian is 33/9/5 over a very small sample. No reads

PokerStars No-Limit Hold'em, $0.05 BB (6 handed) internettexasholdem.com

Hero ($11.69)
UTG ($20.40)
MP ($6.75)
CO ($10.42)
Button ($9.23)
SB ($6.16)

Preflop: Hero is BB with 9[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Button raises to $0.2</font>, <font color="#666666">1 fold</font>, Hero calls $0.15.

Flop: ($0.42) 8[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $0.25</font>, <font color="#CC3333">Hero raises to $0.75</font>, Button calls $0.50.

Turn: ($1.92) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $0.4</font>, <font color="#CC3333">Button raises to $1.2</font>, <font color="#CC3333">Hero raises to $3.5</font>, <font color="#CC3333">Button raises to $8.28</font>, Hero calls $4.78.

River: ($18.48) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $18.48