My friends did not agree that I was a problem and they felt awful about it all.
Or so they told you. That's how it usually goes.
"My wife doesn't understand me."
I'm amazed you are prepared to blame women for something that men decided of their own free will.
It doesn't mean their partners were right about us.
About "us"?
It sounds like they were dead right.
Who wants a woman hanging about with your boyfriend who thinks there's an "us"?
You seem determined to paint me as some scarlet woman who fits into some nice little theory you have about this phenomenon
I don't think you sound like a "scarlet woman" (although I have noticed that women who've been dumped by blokes for pissing off their girlfriends like to characterise themselves as being misunderstood in this way).
I think you sound like a fool.
If you had been no different from a guy friend, they'd still be friends with you.
There doesn't have to be an emotional affair for a "friendship" to be threatening. There just has to be a type of exclusivity that isn't typical of non-sexual friendships.
Like I said at the start, I'd buy that you had once come across a very insecure and controlling woman who couldn't bear having you around and managed to have you excised from a social group of which you were a normal part.
But multiple dumpings by different men for the same reason? That sounds like a pattern.
And the way you talk about dating your other friend and his super tolerant and understanding wife rather bears that out TBH.