Not thrilled about stacking off with TP on such a dry board - we need him to be bluffing basically 50% of the time here and I think we have much better hands (doubs, sets) to call with than QK. 1 question what was the reasoning of your turn bet? IMO we don't need much protection on such dry board and we are really only scared of the Ace.

Any reads on your opponent? I know that it's only 3 hands so far but how has he played postflop in the other 3 hands that he VPIP'd? If you've already seen him do something crazy like this postflop then I'd probably call I guess but fold otherwise. Pretty tough spot without some kind of read.

Just a bad call. You can never call in that spot in a three-way pot. There is also nothing wrong with implementing some checks on that turn to balance, especially 3-way. Although I'm not sure balance is very important at those stakes.

Heads up I still probably find a fold. I'm holding two hearts so it's less likely he is bluffing a FD and I basically have a bluff catcher. If he's all in on turn and I do hit the flush there is no more implied equity for hitting the FD. It's a rough spot. What do you think?

I'm guessing Villian had a set of 55's or 44's and decided to jam it when the heart came? What did he show?

Reading is clearly not my strong suit, neither is poker. LOL.

Well I have a big database already in 25Z so my thought if I have three hands on the guy he has to be some kind of fish, no specific read further.

He showed 23s of harts

AQ doesn't always 3-bet, suited connectors and gappers can be in his 3-bet and calling ranges pre-flop. Maybe he 3-bets gappers and calls the connectors.....imo don't presume on his pre-flop range so much.

The fact that he has vpip'd 3/3 times and has taken this line in this hand, I would assume he's a pretty big fish. Likely a newer player who can show up with Q7, A4 or some other hand that makes no sense to play this way. If there was no FD, I could find a fold and wait for a better spot until we gather some more info. Given that there's a FD present, and straight draws and how often I have seen fish show up with hands like QT, FD, 67, 78, or something completely random, I would lean towards a call. I tend to be quite call-happy and have seen fish do this with weird random hands too often to find a fold on a board that has so many draws.

It's a spot where it'll be quite difficult to know for sure what the answer is because it'd be pretty tough to gather a big sample to see what beginning players do this with. So I don't hate a fold for that reason as it is lower variance. Assuming you're well bankrolled though, I think calling will be a higher EV play, although high variance. You also have to be mentally okay with being shown Q4 some of the time without letting it affect your future decisions.

With that said, I'd probably check back turn and let him bluff rivers as even though I think it's a profitable call, so is picking bluffs off on the river, and it's much lower variance.

I also don't think it's very useful to assign him a range like you did in the OP. That's just guess work and he can have a much wider range given that 1) it's a MR and 2) he's likely to be a big fish with a high VPIP