Villain was pretty new to the table but was giving me a lot of trouble. She bought in shortish with just 60 BBs. Very first hand after she posted, I raised and then she donked into me on a coordinated flop, then double-barrel pushed the turn (I folded a weak top pair). A few hands later she raised and I called with AJo in position - she checked a queen-high flop, potted a jack on the turn (I called) and then potted the river again, which I also called. Turned out she had KQ of spades and had slowplayed top pair on the flop, and backdoored a flush to boot. So I reloaded and muttered. After that she played a few suspicious hands with others that didn't go to showdown, and a couple hands with me that I won small pots where I'm pretty sure she felt I sucked out on her (and honestly, one of them I did - a float turned into a gutshot turned into a straight, you know how it goes sometimes). Then this happened.

Notes on preflop through turn: weak flop raise was strictly to get big blind out of the way. I wanted to play some pots with the villain and was not especially trying to chase her out. Flop c-bet is totally standard for me & I figured I was ahead. Turn bet was purposely on the weak side - I was trying for a combined blocking/information/double barrel bet and was really curious how she would respond.

There were no meaningful timing tells except it took her several seconds to bet the river. Villain's stats over a pretty small sample were about 40/8/7.

Full Tilt No-Limit Hold'em, $0.50 BB (5 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($28.65)
Hero ($59.35)
BB ($55.25)
UTG ($60.90)
MP ($58.85)

Preflop: Hero is SB with :As: :Qh:.
2 folds, Button calls $0.50, Hero raises to $1.50, 1 fold, Button calls $1.

Flop: ($3.75) , , (2 players)
Hero bets $2.5, Button calls $2.50.

Turn: ($8.75) (2 players)
Hero bets $5, Button calls $5.

River: ($18.75) (2 players)
Hero checks, Button bets $15, Hero calls $15.

Final Pot: $48.75