Fast forward nearly 4 years later and my fiancé and I are planning a weeklong destination wedding with a small group of close friends that we rarely ever see because they are across the world. We don't think it's a good idea to invite my ex because it is essentially a weeklong vacation ending in a big celebration of our relationship. I think he may be expecting an invitation, however. 

How do we tell him that he's not invited? I don't want to sound rude but we don't want him there