2/4 PLO HU - Second set vs. insta-pot on river

[Burdzthewurd]

2/4 PLO HU

I have $580, Villain covers. Villain is unknown, times out a lot b/c she sucks at playing 3 tables, is passive post-flop with naked overpairs, and only 3-bets AAxx preflop. She's lead for pot when obvious draws hit, though I feel sort of odd about this one since a FD obviously missed, and she hasn't shown a bluff either. Is this an easy muck for most of you or look it up one time?

Hero raises to $12 with Q[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img], Villain calls.

Flop Q[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/diamond.gif[/img]

Villain checks, Hero bets $20, Villain calls.

Turn 2[img]/images/graemlins/spade.gif[/img]

Villain checks, Hero bets $64, Villain calls.

River 6[img]/images/graemlins/diamond.gif[/img]

Villain bets $192