Here's a cut and dry AITA post from u/BlueRoses95, where most people agreed she was Not the As*hole in this case. Except, there's actually much more to it...
My (31f) friend (30f), we’ll call Mary, got married last week and I was in her bridal party. For context, we are friends from high school and all of her other bridesmaids were her friends from college who I hadn’t met until her Bachelorette party several months ago. I also wasn’t familiar with anyone at this wedding outside of Mary’s immediate family.
I was supposed to attend the wedding with my own fiancé but he contracted Covid 5 days before we were supposed to leave and made the choice to stay home for everyone’s safety (I tested negative and we don’t live together).
Our 5th anniversary of our first date was 2 months ago and he got me a beautiful opal necklace on a gold chain specifically to wear to the wedding because it complimented my bridesmaid dress.