The only thing I get out of this is that you are jealous. Whether or not you admit this to yourself.
The position you're truly in here is potentially being Sub 3 at her beck and call or used as a foil to piss off her fiance. This sociopath who got her to commit to him far more than she ever committed to you.
I was very jealous last year to the point it was consuming me
And re the second point, yeah I first met her as a client and that's when she invited me to a fetish party with her.
One of her subs lives in same city with her and is actually legit her slave - drives her round, works for her at her BDSM studio for free, is cameraman for her fetish clips etc.
The other sub lives abroad like me, earns good money and buys her a shit ton of gifts but gets very annoyed that he only spends time with her when he pays for it. She has told him that she doesn't view her subs as friends/people just possessions like furniture. He has been asking questions about the amount of time I've been spending with her and why he can't get similar
And since NYE, I've been hanging out with this other Domme chick from the same BDSM studio/parties. I think she just does it as a job, whereas it's a lifestyle/passion for the one we're talking about. In fact, I took this other girl out along with her seven year old daughter who ended up cock blocking me.