River decision with TT

[Barrin6]

<font color="red">Hell Poker</font>
Limit Holdem Ring game
Limit: $1/$2
6 players
Converter

Pre-flop: (6 players) Hero is UTG+1 with T[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/diamond.gif[/img]
UTG folds, <font color="#cc0000">Hero raises</font>, 2 folds, SB calls, BB calls.

Flop: 2[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/club.gif[/img] (6SB, 3 players)
<font color="#cc0000">SB bets</font>, BB folds, <font color="#cc0000">Hero raises</font>, SB calls.

Turn: 2[img]/images/graemlins/diamond.gif[/img] (5BB, 2 players)
SB checks, <font color="#cc0000">Hero bets</font>, SB calls.

River: Q[img]/images/graemlins/heart.gif[/img] (7BB, 2 players)
<font color="#cc0000">SB bets</font>, Hero folds.
Uncalled bets: 1BB returned to SB.
<font color="blue"> Villian is tight passive 19/5/.69
How's the river fold? What could villian be betting out here?</font>
Results:
Final pot: 7BB