This is from tonight's session.

Hero $475 Button. KK.
Villain $780 MP Tight passive player, but just got caught bluffing 2 hands ago on a draw. Every hand he has shown before his bluff he always had it when he bets.

UTG+1, UTG+2, and MP limp in. I raise to $35 on the button with KK. Eveyone folds except villain who flats. (Pot $92)

Flop Jd 8d 6s

Villain leads out for $100. I take my time and flat. I was going to reraise but before that when villain lead out he had a set or some monster hand. (Pot$292). I put him on AJ, set, no flush draw, QQ, KK? Any other player I am raising on the flop.

Turn 3h

Villain leads out for $100. At this point I am WTF and dont want to play for stacks with just an overpair.

What do you guys do? Raise, fold, call?

Then if he pushes all-in on the river? call or fold?

This is nearly always a set. I like the flat on the flop, As it causes AJ to check turn. One he fires another 100 on the turn he can't be doing this with a flush draw unless he has maybe 9/10 diamonds as a blocking bet. I would say either a set of 6's or 8's.
I have to fold here.

He may have a flush draw imo, and I would've probably raised the flop. Given that I called, I'm probably raising turn to like, $250 and willing to get it in because if he has some combo draws in his range or AJ, he may put you on a flush draw as well and you can get value... Interested in results. It's pretty hard to fold in these circumstances unless I really, really think he's a nit. How did he play his bluff?

on his bluff from wht I remember he lead out on all 3 streets.

I flat the turn (Pot $492)

The river 2d. He pushes all in. He covers. (Pot $740)

The board is now Jd 8d 6s 3h 2d.

Suggestions? call or fold? 3:1 on a call I only had about $240 left.

Yea I hope you called

I jam it on turn. Villain will talk himself into calling with Jx. And there are too many action killer cards that can fall on river.