AJss oop passive played on J33hh vs sLAG

[ArgusSpets]

Villain is miamihans on stars nl600. Have not any hands with him, though the 100hands we played I raised he reraised and I folded preflop or on flop, so he maybe views me as weaktight. He seems aggro/sLAG.

PokerStars No-Limit Hold'em, $6 BB (6 handed) by Hand Converter CG

saw flop|<font color="#C00000">saw showdown</font>

<font color="#C00000">UTG ($703.30)</font>
MP ($482.40)
CO ($87)
Button ($523)
SB ($594)
<font color="#C00000">Hero ($600)</font>

Preflop: Hero is BB with A[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises to $18</font>, MP folds, CO folds, Button folds, SB folds, Hero calls $12.

Flop: ($39) J[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $24</font>, Hero calls $24.

Turn: ($87) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $66</font>, Hero calls $66.

River: ($219) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $195</font>, Hero ???

Is this way too passive? (I assume) The thinking behind the hand from my point of view is more complex than the hand looks, but maybe Im overthinking as usual.

Thoughts (on each street) welcome. Thanks!