Hello. I am recently engaged and we are having our families meet for the first time. We planned a lunch at a restaurant for our parents, siblings, nieces, and nephews.
The problem is that my fiancée's brother invited his new girlfriend without asking us. I met her once and she has met my fiancée's family briefly a few weeks ago, now she is coming to our "meeting of the families". A little background about the brother: He went through a terrible divorce 2 years ago, he has 3 young kids, he just met this new girlfriend about 3 months ago, and she lives in Canada. We are in NJ. Also, this lunch is happening at his brother's restaurant, which I was against in the first place, as I wanted it in a neutral place. I feel it is not the time and place to have this girl introduced his and my family. It is about my parents meeting my fiancée's family. Am I wrong for being really annoyed and not wanting his girlfriend there?