I wasn't married, but my men were/are/were best friends. I don't know what their damn status is, they talk way less than I would to a dear friend, and they don't discuss their friendship with me.
I was mono with FBF for two years. Early in that, he met CBF and hired him to work for FBF. They became very close friends; and the three of us were also friends together. When FBF and I were looking like it wouldn't last, CBF was kind to me. When we actually broke up he talked both of us through it. And after that, eventually CBF and I started going out. One of CBFs special powers is bringing people together. I'm not sure that without him, FBF and I would have continued a friendship. 6 years later, (about a year ago), we became a vee.
They were much less worried about it than I was. None of us (I think) had tears about the vee, though I had plenty of tears. I seemed to be the only one that ever worried about the vee, or the health of it, or whatever. Both of them were very reassuring to me when I was freaking out.
In January, I broke up with CBF, so we are no more. But it wasn't about the vee.
Encourage you to do a forum search for the tag 'hinge' if you want to read stories about that. Might be helpful.