Villain is 24/12 over 100 hands with healthy 8% 3bet, seemingly aware of flop texture, position, etc so by no means a complete donk. Has been alpha at table for few orbits.

A few hands ago I flat his 3bet OOP w/JJ and c/r all-in on 9 high drawy board where he folded after tanking and writing "Wow." in chat box. I think he may have folded something as strong QQ as I'd been playing really tight with him on my immediate left.

Party Poker No-Limit Hold'em, $0.20 BB (6 handed) - Party-Poker Converter Tool from FlopTurnRiver.com

saw flop

MP ($69.03)
CO ($19.68)
Button ($20.51)
SB ($17.46)
BB ($4.30)
Hero (UTG) ($23.66)

Preflop: Hero is UTG with 10, K
Hero bets $0.70, MP calls $0.70, 4 folds

Flop: ($1.70) 5, 3, 9 (2 players)
Hero bets $1.27, MP calls $1.27

Turn: ($4.24) K (2 players)
Hero checks, MP bets $3.18, Hero calls $3.18

River: ($10.60) J (2 players)
Hero checks, MP bets $10.60, Hero ??

Plan was to c/c River but his PSB threw me off a bit and I thought opinions might differ as to whether not a call is good here. Thanks for reviewing. Looking forward to feedback...