I totally agree! Its kinda like free dining on a boat. He doesn't like to meet people and while I can picture myself reading out on the water, he has no idea what he would do. But that's the fun of it, right?
He just doesn't have an adventurous streak (that's what I'm for) and if he's not familiar with it, he's not into it. It took me forever to convince him to do Disney, and I practically had to make a powerpoint presentation to make my case. I keep threatening to take a cruise without him, and he tells me to have fun without him. Pooper-head.