I think you summed it up when you said you and your DH aren't really fans of the cruising idea. He doesn't want to go, and you do not want to go, nor do you want him to go without you. So you're churning up all the reasons to justify not going, down to the cost of gas to drive a couple of hours to the port. Really, he must go. Whether or not you go, is up to you.
Since you don't want to go, just don't go. There is no need for you to justify your own staying home at all. It's OK for you to not go just because you don't want to, and your husband should support you and not guilt you into "needing" you there to hold his hand.
And, you definitely should encourage your DH to go with a great attitude, have fun, and make the best of it the little annoyances. Anything less would be ungrateful and bad for his career. They did not just spring this on him, he was well-informed upon accepting the job. That trip sounds awesome and is very generous of his employer!
I get you both have a lot of anxiety about all the details involved with this cruise. It can seem overwhelming. As an introvert, there are so many times my anxiety wants to hold me back from putting myself out into social situations. Usually once I am actually there, I have a good time and I'm glad I didn't stay home.
Since you don't want to go, just don't go. There is no need for you to justify your own staying home at all. It's OK for you to not go just because you don't want to, and your husband should support you and not guilt you into "needing" you there to hold his hand.
And, you definitely should encourage your DH to go with a great attitude, have fun, and make the best of it the little annoyances. Anything less would be ungrateful and bad for his career. They did not just spring this on him, he was well-informed upon accepting the job. That trip sounds awesome and is very generous of his employer!
I get you both have a lot of anxiety about all the details involved with this cruise. It can seem overwhelming. As an introvert, there are so many times my anxiety wants to hold me back from putting myself out into social situations. Usually once I am actually there, I have a good time and I'm glad I didn't stay home.