Whoops....just accidentally invited someone

Anyone else slip up like this? I was chatting with a friend about when he was planning to come by to pick something up from our home. Meanwhile I had another conversation going with a different friend. Sent the text asking "may I have your girlfriend's full name for the wedding invitation" to the wrong person. Well, now I guess we are paying for 2 more plates. I hope Mr. Accidental doesn't realize that everyone else got a link to our website in January. Good thing physical invitations haven't gone out yet, and we didn't do save the dates....yikes. I feel terrible.