WTF, right? She and I are close and all and right after my engagement, she threw me a little happy-hour party as a congratulations after work one day. She's been a good friend, but for bridesmaids, I chose my sisters. I never asked her to be a bridesmaid and never even hinted at it because originally, I wasn't going to have a bridal party then I decided to have my sisters and that's it. Well, she got upset that she wasn't asked to be a BM and didn't tell me until last week when she told me she could not attend my wedding because she VOLUNTEERED to work that day. I asked if they're making her work and she repeated that she volunteered to do so because she thinks it's better this way.
Things have been so awkward at work since then. I don't know what to do.