So anyway, if you have a problem with the normal, standard words fiance/husband/fiancee/wife it's very definitely a you problem.
And objecting to the concept of having a specific word for an engaged person is simply bizarre. Language routinely has convenient words for specific circumstances, you can also ditch widow and orphan if you're going to pretend fiance is an issue.
Those who discuss their circumstances get to decide how to discuss them, it's not your place to make that decision for them. If I say "I'm a widow, or "I'm an orphan" you know precisely what I mean, and I am in charge of that definition.
That's what language is for. We're not going to degrade communication to the level of Newspeak just because standard, normal terms offend you.
When discussing me, if not in my presence, you can pretend husband has no meaning and say "Man she lives with" if it comforts you.
If in my presence I will gently correct you and say "Oh do you mean my husband" - because you sound insane.
Treating fiance as somehow objectionable is making a completely ordinary piece of vocabulary into an issue when there is no issue except one you have invented.
I don't know why you feel inferior about not being engaged or having a fiance, but that's on you. And if you're going to claim you don't, in fact, feel inferior then you need to drop this nonsense, right now. Because there is simply no other plausible reason for objecting to a perfectly normal noun that is in common usage.
In fact, if you're going to pretend fiance is a problem then I absolutely insist that you must say "man I sometimes fuck and date" or "man I started living with and have sex with" instead of partner or boyfriend.
After all, it's accurate and you don't need a special term to describe anything, or anyone.