This is as much of a reach as assuming the anklet was a definite "I'm going out for casual sex" token.
At first I was like, no! Lol. I might still be on that side of the fence, but after 3 years of learning tones and chats I think it was a minor flare on her side, it is pretty out of character for her to ask the question in the way it was structured unless she is stressed or bothered - then things become direct like a brain dump of sorts. I also notice alot of love bombing when she gets that way, and some comments like "you're a 10/10" are flattering and she has said it unsolicited prior, but are similar to how her behaviour has been before following heavy or serious talks. But you are absolutely correct with everything else, I shouldn't put much stock playing what if and all that aside, I should focus on finding a little happiness with my presentation.
You seem paranoid, maybe? And if she really was fishing, she is very insecure. I think you think she is really scared of you dating others and leaving her. It seems a bit selfish that she can go fuck anyone, but she's like, hoarding your loyalty because of her insecurity, or possible low self esteem. Is she ashamed of her exhibitionistic desires (the hotwifing)? Does she think she doesn't deserve your love? Do you need to talk more deeply about all this?
So a large part of why we became close, aside from our super compatible personalities, sexual kinks (mostly! aside from the number of partners and casualness), etc is this. Maybe about a year in she got really upset that I would hit a point in life and ghost her. A few months before that her H texted me saying he hoped my wife/gf/PP of the future would be okay with it, so I think it was a bubbling issue before it was presented to me, and that is okay! We spent alot of time reassuring each other, and since then have done so in person and electronically as well. We became close through it. I am not paranoid, and I know that sounds so "everyone else is crazy" but as I mention to icesong I have become really good at reading her tone on day to day texts. I also highlighted the follow up comments that she's displayed after former tough conversations. But you and icesong are right in saying - what is the point of speculation?
As for the other points;
I wouldn't say it is self-esteem but more of a "ticking clock" type panic. She is very confident with random people, but with me is really invested and supportive of me even beyond what I think of myself. And I know she is really scared of me dating others, she's mentioned it more than a couple times and I have fought that five alarm fire alongside her more than a few times. I know it is scary and hell, it is what I am going through now, but I know it is out of the goodness of her heart and her care. But she is concerned with the pretty typical "He'll marry a model genius" type.
As I mentioned before, she will not use the term hotwife and calls them "dates." Unless things are really hot and heavy, then she will use more liberal language, so I think you are right that she is a little ashamed. I also noticed that I am exempt from this language. I am a "relationship" and a boyfriend. Our dates are "trips" and not the other form of dates.
And I am not sure how to convey this aspect of my care anymore than I can over LDR. I have flown many hours to see her, and vice versa. I have told her that I am poly regardless if she was there or not, and that I would like to keep seeing her. Yet there is this worry by her, which while it is nice to reassure her and actually makes me feel valued (and hopefully vice versa) I keep fighting with her to defeat it. But we all know jealousy is a persistent son of a bitch.
What her husband wants is none of your business.
99.9% of the time, yes. But as I said he is a swinger, hardcore, and I know while she is too I think she is caught up in this to an extent- part of why she's fibbed despite our commitment to help each other and be clear. I worry that the pressure will not be a healthy nor stable part of it all if he has desires that are more liberal with fluid bonds, but we will cross that line when it comes.
I also know a close friend of theirs had an open relationship go terrible, so I think the suspicion of me being a "cowboy" is there since that happened recently as that is what happened to their friend, though I have been very readily clear that I want my own PP and have been very supportive of them. In fact, one of our earliest tough talks was that if things were to sour between them I would step out of the picture entirely as they were new and this can be tough for everyone. This policy is something I always ask for with newish couples, as to not pressure them with my pressence but rather let them reassure each other and strengthen their bond between each other.
Ironically, she's mentioned, him and I are very alike and different enough that we're unique but often when discussing stuff I will be told "OMG H is just like that."