1/2 NL - Aces linecheck on nasty board

[Burdzthewurd]

1/2 NL FR 9-handed

I have $210, Villain and MP2 have me covered. No reads on either. I planned to bet/fold turn. As played I think check/folding river is ok vs. unknown, I hope? Is this really a check/fold on turn?

UTG limps, Hero raises to $9 with A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/club.gif[/img], 2 folds, Villain calls, MP2 calls, others fold.

Flop J[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] (Pot - $31)

Hero bets $19, Villain calls, MP2 folds.

Turn 3[img]/images/graemlins/diamond.gif[/img] (Pot - $69)

Hero bets $37, Villain calls.

River K[img]/images/graemlins/heart.gif[/img] (Pot - $145)

Hero checks, Villain insta-shoves, Hero folds.