Is it rude to not give a guest a plus one for their significant other? We have two or three people who we want to invite who are in relationships (just dating, not engaged or married), but neither me or my fiancé have ever met their significant others, and chances are that we probably never will. I honestly don't really want someone at our wedding if we have never met them. Is that fair, or do I need to get over it and let them bring their SOs?