Mid pair problem

[Womble]

PokerStars 2/4 Hold'em (5 handed) converter

Preflop: Hero is SB with J[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
UTG calls, <font color="#666666">1 fold</font>, Button calls, Hero completes, BB checks.

Flop: (4 SB) 3[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, <font color="#CC3333">BB bets</font>, UTG calls, Button folds, Hero calls.

Turn: (3.50 BB) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">BB bets</font>, UTG calls, Hero calls.

River: (6.50 BB) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, BB checks, UTG checks.

Final Pot: 6.50 BB

BB is a LAG and UTG is LP so I didnt know what to do. I didnt respect BB bets and UTG would call anything so im playing blind [img]/images/graemlins/confused.gif[/img]