I don't want him there either. No telling what he's going to do when he finds out. But I'm also anticipating his shocked (and other) expressions, and reaction when he finds out. She's his fiancee's most treasured friend, and she will be his trusted aide's fiancee. LOL! ε=ε=(ノ≧∇≦)ノ
...don't invite the prince to the engagement party. Please don't