Barb,
Glad that he has decided to go. Just don't worry about him on the cruise. Plan for your time and I am sure that he will enjoy himself. Hopefully he will join you for some of the meals/activities, and if he doesn't, it isn't because he doesn't love you guys, it just isn't his thing. He is probably finding this whole DIS thing overwhelming. I know that my husband laughs at me (and thinks it is kinda cute), but he knows that I am always like this before a vacation. The minute we book a trip, I am researching like crazy. It just so happens that this time the research is on DIS.