UTG is a 52/4 typical loose passive fish. Button, who is 33/18, and BB who is 45/12, likewise appear to be loose passive fish although button we're not sure on.

First mistake I think was betting here. I'm not opposed to betting out 3-way, but if we do, I think it needs to be with the intention of folding to a raise from a loose passive fish since they have TPTK crushed. Button is tough though because his stats are closer to a reg than anything else but he appears to be more of an aggro fish. I observed him 4-betting A9s, he has raised the flop bet with an overpair or less and no draw and he does play draws aggressively. He also likes to limp and then call a raise with suited trash, so he's either an aggro fish or a very bad reg. Still, raising 3-way is less likely to be a bluff so I could see him calling and then raising with something like Ac3c except we have the Ac so that's out. He can really only have 22, 44 or perhaps 3c5c, so he's repping very thin here. We decided to peel since we do have the Ac, and can put a lot of pressure on villain if the turn is a club, but actually the fact we do have the Ac I think makes it more likely villain has value since he can't be raising with the NFD. If we assign a range of 22,44,3c5c to him, we are just totally crushed vs. that range. Maybe he's spazzing out with a hand that has little to no equity like K7 but I don't think he does it often enough for our call here to be profitable.

Our call on the flop puts us in a pretty gross spot on the turn. The reason I decided to call is no obvious draws came in, and with our SPR being approximately 1, we pot committed ourselves by calling the flop raise. I understand that villain is an aggro fish, and maybe he's bluffing us, but I think it's far less likely he made that raise as a bluff 3-way. I think if we were heads up perhaps this play would have more merit but I think this was just a case of us getting stubborn in a spot where we should have snap mucked to the flop raise.