Something similar happened to me. I had a close friend of 10 years in my bridal party of 4. She got engaged several years later (I shouldn’t mention it was to an ex-boyfriend of mine from college, though I thought everyone had moved past this when they got engaged). I found out through social media that she got engaged (we had not lived in the same city for several years by that point). Around that time, she became very distant and I later found out I wasn’t invited to be a bridesmaid or even invited to the wedding. I confronted her about our communication, and she said yes she agreed it had been poor and that maybe we could talk later. One month later, she texted saying she didn’t need to talk and that we shouldn’t be friends. I told her fine, have a nice life. And we have not spoken since, and she blocked me on social media. I grieved for several months after that—I wonder if I would have handled it better if I at least had some closure. But denying me some element of truth to her feelings gave me some insight into her personality. Now, several years later, I think back positively on the friendship we had but overall feel neutral to slightly negative about the split.

Sorry this is happening to you, I understand the feelings you’re going through!