I got engaged two weeks ago and my parents are throwing my fiancé and me an engagement party to celebrate. My little sister and her boyfriend are “pre-engaged” and seemingly irritated that I “got to go first.” Last week, she announced that they intend to elope, and announce it at my engagement party. My initial reaction was, “That’s like announcing your pregnancy at someone else’s baby shower!” I love my sister, and I am awfully fond of her partner—but I’m irritated that they both think this is an OK thing to do. I don’t want to start an emotional war within my family, but I also want my own thing for one day. Help me find inner peace with this.