I'm not saying it doesn't suck, but you can't control who other people associate with.


It's not disrespectful of them to remain close to her, they didn't do that TO you, they did it FOR themselves / each other.


So there's no reason to lose your respect for them.


It would be a whole different story if they were flaunting her in your face and inviting her over while you're there.


From what you've posted it seems they've been most respectful by keeping their friendship with her as discreet as possible. I mean you had to go digging to find out this friendship even really existed...


So I guess what I'm saying is, give them some credit, at least a tiny bit.


There's no law that says you need to break ties and hate certain people after a break up.


Case in point: I'm friends with my ex SIL but half the time I don't even acknowledge my "brother's" existence. I have zero contact with him.