So my fiance and I have been planning our wedding for awhile and have had our date set since the very day we got engaged. Venue, church, photographer...basically everything is planned. Just recently, my fiance has brought it to my attention that his sister is potentially planning to get married exactly a month before us. He and I are both extremely upset about this and he even talked to his sister about this plan and she basically told him tough cookies she'll do what she wants. I don't know how to react to this or handle this. I had already asked her to be a bridesmaid in my wedding forever ago and now I feel like it's going to be completely awkward because all of the other bridesmaids, my friends, and family now think she is the most evil person ever if she actually goes through with this. I really don't know what to do so I'd like to hear from people who have been in similar situations. I'm actually more upset because of what this is doing to my fiance. His entire life he's felt outshined by his sister and he cannot wait for our wedding. He and I are so happy and proud to be marrying each other and for once he'd like the focus on him for a change. Don't get me wrong...I'm upset for my own reasons too but I just find this very appalling behavior on her part.
Any thoughts?