I'm not claiming this particular fallout is due to a romance. Im saying that, Athena and Bella in particular, have a totally different vibe than any of the others have ever had with Bella. Yes, they've all been friends and have done the "look" but not like she and Bella.
As for being married, they're in ultra-conservative Utah. Still, I'm overtly saying that Athena specifically has a different dynamic with Bella than any of the others ever have publicly. That's beyond clear.
I then speculate (admittedly), from personal experience and knowing the type, that Athena is a very specific type of person...and those types don't really give a shit about others that they feel are in the way of what they want.
As for their husbands, at least Athena's, who's to say he isn't into it? If your wife befriended Bella and told you that she would like to slowly do what she could to work her into your bedroom...are you upset? Invited to join or not, are you upset? lol, I hope not.
These types exist. I've known them. Some relationships are more "partners in crime" than normal relationships.
So, yes, it's a lot of speculation based on blatant social behavior and common personality types. Admittedly schizobrained...until it isn't. Let's come back to this in 5yrs and see if I was right lol.