When you're married, you're allowed to do things alone. You're still a person with their wants, desires, and lives. It probably even helps to have some separate activities, or else you'd quickly get sick of each other. Weddings, though, are generally something that you do together. It's just one of those things. It's like a sign to the newlywed couple that marriage works, or something. You get dressed up and you go together. Unless one of you can't make it for some reason, then you send your regrets. Sorry, I don't make the rules!
But to not even invite your brother's wife, that's a whole different story. But that's what happened to one couple whose foundation was quickly shaken by an invitation to a destination wedding. Read on for the story and decide who was in the wrong. It's always fun to get in the middle of someone else's drama, right?