Villain is pretty loose, running at 45/30/3 over 86 hands.

PokerStars Pot-Limit Omaha High, $1.00 BB (6 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: FCP)

saw flop|saw showdown

SB ($131.70)
BB ($129.05)
UTG ($61.40)
MP ($214.35)
Hero ($143.65)
Button ($95.65)

Preflop: Hero is CO with 8 , J , 9 , K .
2 folds, Hero raises to $3.5, Button raises to $12, 2 folds, Hero calls $8.50.

Flop: ($25.50) T , Q , 8 (2 players)
Hero bets $24.25, Button calls $24.25.

Turn: ($74) Q (2 players)
Hero

Is this a bet/fold scenario?

There's no such thing as bet/fold when he only has a pot sized bet left. I don't put him on a set here, I'm all in.

^^This

Yeah his stack forces us to put him all in on this turn.

It gets a lot more complicated if you are both deep stacked.