NL25 SH: QJo turndecision

Hand converted with online PokerStrategy.com hand converter:

Play hand

$0.1/$0.25 No-Limit Hold'em (5 handed)

Known players:
[tg]MP3$25.27:///////;CO$21.57:///////;BU (Hero)$25.00:///////;SB$20.10:///////;BB$25.35:///////;[/tg]

Preflop: Hero is BU with J:h, Q:d.
2 folds, Hero raises to $0.75, SB folds, BB calls $0.50.

Flop: ($1.6) J:s, T:c, T:s (2 players)
BB checks, Hero bets $1.00, BB calls $1.00.

Turn: ($3.6) 6:s (2 players)
BB checks, Hero checks.

River: ($3.6) 3:d (2 players)
BB bets $1.25, Hero folds, BB gets uncalled bet back.

Final Pot: $3.6.

BB stats (53 hands)
20/12/25/0.0/-
0.8/100/50/17 (W$SD=100%(1))

Preflop:
Standard raise

Flop:
I'm bet/folding this against a nitty player who doesn't go to showdown too much.

Turn:
Should I bet/fold this as well? My reasoning for giving up is: flush has arrived, and only better jacks or Tx hands will call my bet. Maybe KQ with another spade but I doubt.

River:
He makes a small bet, however with his agressive factor I just don't think there are a lot of 88-99 hands he's betting.