So a friend of my fiance's is getting married, and I have never met this friend or his bride to be. This couple is invited to our wedding, and we sent them a save the date and an invitation already. Their wedding is less than a month before ours and my fiance has told his friend how excited he is to go to his wedding, ... The huge problem is that this couple sent an invitation to my fiances parent's house addressed to my fiance, his two brothers, and his parents, with no 'plus ones'. So I am assuming that since I didn't get an invitation, (and my fiance and I have lived together for a year, been engaged for a year) that I am not invited. My fiance thinks we are just going to go anyway, but I think its incredibly rude to go to a wedding you clearly were not invited to. Not only that but they know we live together and are engaged (they recieved our wedding invitation already), so there's no excuse. Not to mention the fact that my fiance told me he is going to this wedding no matter what, even if I don't go. (whats even worse is its on my birthday but thats beside the point) GRRR! How do I address this?