Was this too weak tight??

[akvsaq]

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

Preflop: Hero is BB with K[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, <font color="#666666">2 folds</font>, MP2 calls, <font color="#666666">4 folds</font>, Hero checks.

Flop: (3.50 SB) 3[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">UTG+1 raises</font>, MP2 calls, Hero calls.

Turn: (4.75 BB) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">UTG+1 raises</font>, MP2 folds, Hero folds.

Final Pot: 7.75 BB

I'm not sure if I played this correctly. Villan is a loose-passive player. My thoughts were.. he plays about 37% pre-flop and I bet my top pair, get raised, I have a chance to be good but not sure. So, I bet again, if he raises again, I'd think I'm beat to a loose-passive and I can fold in this small pot. What about if villan was loose-aggressive? Would you check and call down?? Thanks for your input.