KQo with ace on board. Just fold and move on?

[BoxLiquid]

I did a pretty donkey move on the flop but I think villain might of had a medium pocket pair. Don't laugh too hard.

Villain is 34 vpip with 70 hands. 28% preflop raise.

Paradise Poker 10/20 Hold'em (5 handed) FTR converter on zerodivide.cx

Preflop: Hero is MP with K[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">SB 3-bets</font>, <font color="#666666">1 fold</font>, Hero calls.

Flop: (7 SB) 4[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, SB calls.

Turn: (5.50 BB) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

River: (5.50 BB) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, Hero folds.

Final Pot: 6.50 BB


Was I supposed to just fold flop and move on? Hate looking weak tight.



Any and all comments + critisism welcome.