I've been lurking for about a year, learning as I read, and enjoying the discussions. My friends pretty much all got married five to ten years ago, when I was truly single. So between that and my lack of knowledge about etiquette, I never considered or cared whether I was given a plus one or not. Now at age 38, in my first long-term relationship, likely getting married in 2017, I've started to pay attention.
My boyfriend (dating for 1.5 years, living together for a year, none of which matters) recently received an invitation to a first cousin's wedding. And I wasn't included. Not by name, and not even a plus one. It really stings.
He had thrown the outer envelope in the recycle bin and was showing me the invitation. The RSVP card didn't have any indication on total invited. I asked him if I was invited and he wasn't sure. He retrieved the outer envelope and only his name is listed.
He isn't attending the wedding, we'll be moose hunting at the time. And I am going to encourage him to return the RSVP- he wasn't going to send it back since he isn't going to go.
So for future brides and grooms, please check in with the people you invite to your wedding. Don't rely on FB, our relationship is not "FB official" because we didn't feel the need. Check with your single friends and family to see if they are truly single.