100NL Calling for a possible split?

PokerStars No-Limit Hold'em, $1.00 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($29.30)
UTG ($105.05)
UTG+1 ($98.50)
MP1 ($139.55)
MP2 ($262.10)
CO ($115.55)
Button ($183.10)
Hero ($97.50)

Preflop: Hero is SB with A, T.
5 folds, Button calls $1, Hero completes, BB checks.

Flop: ($3) Q, J, 9 (3 players)
Hero checks, BB checks, Button checks.

Turn: ($3) Q (3 players)
Hero checks, BB checks, Button checks.

River: ($3) 8 (3 players)
Hero bets $2, BB raises to $7, Button folds, Hero ???

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BB is an unknown.

How is PF?

I feel like the river is likely a split, but there is the possibility of a full house. What's your move on the river?

I'm happy to check down the river. If you feel you might be good or at least splitting on the river, I think a check-call is in order as it lets worse hands bluff.

As played I just fold.

That sucks. I like leading the river more then checking in case he has 1pair/trips but I think you should fold too. In the heat of the moment I'd probably call because I have to see his bluff/donk-trips or at least split the pot, but it's probably a leak.

you should have bet the flop or at least the turn.

ZOMG ignore me I totally did not see that hero has a straight.

Bet 2$ on flop.

I think the river has been played fine, just call his raise. Likely split, but unaware opponent with trip q's could be raising, or against FH/nut flush. Do not 3 bet flop in this spot.