To paraphrase one commenter, the one rule of weddings is that you're supposed to do what the bride asks. It's her one day, and no request should be overlooked. If she wants the groomsmen to wear purple vests, that's what you're doing. If she wants her wedding band to be a One Direction cover band, that's what's happening. If she tells you not to announce your pregnancy on her day, then you better not.
But some people have a hard time taking direction, and/or remembering that the world does not revolve around them. Some people are just used to the spotlight and assume it always focuses on them. That's what happened to one pair of sisters whose lifelong difference came to a head at one of their weddings. Though the family was quick to take one side, commenters had a completely different idea. Read on for the story and see what you think.