10/20 Blinds hand - I choke in the face of a turn donkbet

[Zele]

Raising seemed like spewing (and I really didn't want to get 3bet); folding seemed weak. As it went, I just felt dirty.

Edit: No read at all. This is the second hand we've played together.

Party Poker 10/20 Hold'em (6 max, 6 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG with 5[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/heart.gif[/img]. Hero posts a blind of $10.
<font color="#666666">3 folds</font>, <font color="#CC3333">SB raises</font>, <font color="#CC3333">Hero (poster) 3-bets</font>, SB calls.

Flop: (6 SB) A[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

Turn: (4 BB) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets</font>, Hero calls.

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

Final Pot: 8 BB