AJs confusing hand, played too weak?

[tommo]

Party Poker No-Limit Hold'em, $ BB (10 handed) converter

Hero ($24.05)
MP2 ($28.15)
MP3 ($8.75)
CO ($41.3)
Button ($25.3)
SB ($25.45)
BB ($10)
UTG ($21.05)
UTG+1 ($29.25)
UTG+2 ($37.7)

Preflop: Hero is MP1 with J[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $0.1.
UTG calls $0.25, <font color="#666666">2 folds</font>, Hero calls $0.25, <font color="#666666">1 fold</font>, MP3 calls $0.25, <font color="#666666">2 folds</font>, SB (poster) completes, BB checks.

Flop: ($1.25) 6[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, BB checks, UTG checks, <font color="#CC3333">Hero bets $1</font>, MP3 folds, SB folds, BB folds, <font color="#CC3333">UTG raises to $3</font>, Hero calls $2.

Turn: ($7.25) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $6</font>, Hero calls $6.

River: ($19.25) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
UTG calls $11.80 (All-In), Hero folds.

Final Pot: $31.05