I think it's pretty common to have a sense of unreality when a long-anticipated event finally comes to pass. There's this whole, "Is this really happening???" feeling. I've experienced it often, with the most intense being the one time my now-husband and I were apart for several months, when he moved from Ohio to Oregon ahead of me. We met up in Hawaii, and between not having seen him in a while and the beauty of Hawaii after months of winter in Ohio, it just didn't seem real. It's been about 25 years now and I still remember that vividly.