With regard to all your prior actions: The initial raise is a little larger than the Hold'em Solver Standard Preflop Raise Recommendation™, but whatever. There's a lot of room for argument there IMO. I also agree with the flat-call when the BB 3-bets; you're essentially set-mining against a likely overpair, plus two other relatively unknown but not weak hands. It's a thin set-mine but not terrible. Shoving would be silly in that spot.
Folding the flop is not bad either. I'd expect BB to be ahead of tens often enough that you don't want to tangle with him for stacks. Button and SB are both in the hand as well, and either could have you beat. To boot, the diamonds on board slightly dilute whatever advantage you have when ahead, on average. It's definitely a groan-fold, but a fold nonetheless.
This is all assuming no meaningful player reads, since none have been provided beyond "big blind tends to lead out aggressively with made hands" (which only supports folding, if anything).
This most accurately describes what my logic was in flatting. With two left still to act, I had figured that at least one would call. At the time, I thought the best play to be to set mine and fast play it if it hit.
On a very scary and connected board out of position, I didn't have it in me to continue. Both remaining villains are pretty loose, passive, and sticky villains in a vacuum. Villain on the button is a bit less sticky than the SB villain. To put it simply, if either lead out with a bet when I'm up against them, unless I have second nuts or the stone cold nuts, I'm getting out of the way. Neither guy leads out very much.
I think you needed to re-raise preflop. Flatting with button and SB left to act seems like a leak. TT against 3 players is not a fun spot.
I think if you're folding to a cbet on that flop means you probably should have folded pre-flop if you're putting villain on JJ+.
In a later position and if I knew I was going to go heads up, in the moment, I would have considered shipping it. I was still hoping to get to the flop heads up upon the rest still to act seeing BB's reraise. Hindsight is 20/20, but looking back, I think the correct play is to either fold to the BB raise or ship it, especially with passive, sticky players yet to act.
I'm going to assume no antes.
Your preflop raise is just way too large. When stacks get below 100bb with antes a normal size would be 2.5x. In tournaments you have to adjust to saving chips more often. So large preflop raises aren't necessary. When there are no antes and stacks get even shorter, then you can even start to just min raise.
As played, I don't think you can fold flop. It's HIGHLY unlikely the button and SB have you beat her as they didn't 3 bet pre. So unless they are the types to flat with JJ, then you are really only best by an 8 or 55 from them. And calling will get you that info as well as preserve you hand's value against the BB. Though the pot is so big that is going to be hard to fold turn unless it comes an A, K, and possibly Q.
The biggest problem here was your large raise pre. You bloated the pot and have made it so you only have about a pot sized bet left in a 4 way 3 bet pot. Not a good place to be.
Correct, no antes.
My standard open is usually about 2.5 to 3 BB's, but I do like to mix in larger sizing here and there. Out of position with a pocket pair, depending on who I'm playing with, I'll either bet on the large side or limp/re-raise if facing a raise coming after me. With this particular cast of characters, I tend to bet to try and get it heads up to a flop, or take it down preflop, which with the way I was running, I would have accepted at that point. That said, I knew I was doomed as soon as I saw I was going into the flop four ways, and with a pretty wet and connected board, there was no way that I thought I was in any way ahead and was essentially drawing dead to a two outer.
I think if it wasn't four ways going into the flop, I may have continued with the board as it was if I had just one opponent to worry about. Even if I think I'm up against a high pair to my right, there are still two players out to act after me that may very well have an 8 and/or a straight or flush draw. With these two villains on the button and in the small blind, their ranges are pretty much wide open, and the board connects with their ranges better than mine.
Why not shove pre-flop? If he will squeeze without a big pair, you're raising 7200 to win the 5200 already in the pot. You can't raise to something like 3000, because you'd have less than a PSB left.
If he calls the shove with KK+ and AK, you have 40% equity!
If this (99+,ATs+,A5s,KQs,AQo+,KQo) was his squeeze range, you have 48% equity vs that.
Even with the re-raise, I still had about 7 BB's effective. Villain in the big blind here hardly leads out unless he has a high pocket pair or hands like AK or AQ suited. As above, flatting here and trying to catch the set and seeing the flop to see how BB acts was incentive enough to get the information based on what was on the board.