So my fiance received a text message from his cousin today saying "just a heads up but I am bringing my boyfriend to your wedding." They have also invited themselves to our rehearsal dinner despite the fact that they have no role in the wedding.
We have never met her boyfriend and we are really trying to watch the number of guests. Their save-the-date was also very clearly addressed to my fiance's aunt and cousin only. (We have not sent out invitations yet).
I don't think that there is anything I can do since they bought his plane ticket already... If they had ASKED us if it was alright, chances are we would have said he could come to the wedding, but sending a text after buying a ticket and saying "heads-up" just seems extremely rude!
Any advice???