Hero usually plays 2/5 but is taking a shot at 5/10 tonight even though it's full of regs because he is a bit drunk and stuck (no comments pls). Other players at the table know he usually plays smaller stakes and perceive him as nitty as well as scared money. They also know he is a 2/5 reg and probably a winning player at those stakes.
Hero is sitting with 1.4k and table covers.
Hero sits around folding for a while while other players make comments about his nittiness. Finally picks up KQo UTG seven handed, makes it 40, gets 3-bet to 110 by LAG mid 40s big gambler/action type/douchebag to his left,, BB (strong winning late 20s/early 30s reg at the 5/10) cold calls, hero calls.
FLOP (330) K
6
3
checked around
TURN (330) 5
BB bets 180 hero calls, 3-bettor folds
River (690) 4
BB bets 420.
Hero?
Thoughts on all streets please.