You're not giving us a lot to go on here but from your previous posts I understand you have a Prout cat
and you worry about storms
It's your husband, your marriage and your opportunity to see some of the most amazing places on this planet -- or not. Hence, it's also your decision.
From the little we know, it sounds like your husband knows what he wants to do, and he's doing it -- with or without you. You're free to join him or stay behind and follow when and where you can and want by plane.
Without knowing WHY you don't want to sail with him, there is nothing much to say really ...
* Is he not a good sailor, does he take risks he shouldn't be taking and is that why you don't feel safe on the boat?
* Is he a good sailor, but are you afraid out on the ocean because of what might happen? Do you trust the boat and your husband enough to know you'll be fine even if you do end up in a storm?
* Has something bad happened during your Atlantic crossing
that made you afraid to keep sailing? If so, what happened and how did you two deal with it?
* Do you want to travel the world or would you rather stay close to home or just fly out for vacations on well known tourist resorts, and not go "to the less traveled"?
Your husband will be fine - he can sail solo or take on a crew, whatever he wants. And as MarkJ said -- he won't be lonely if he doesn't want to be.
So this is about you, what you want and what is stopping you from simply going back to the boat and your husband and travel together.
The only thing I can say, from personal experience, is that in my opinion sailing with a partner who doesn't really want to be there is a lot worse then sailing without said partner ...
See if you can find a way to sail together and share the dream, or, if there is no way to do this that makes you both happy, set yourselves free so each can do what makes him / her happy. Life is to short to anchor
each other down.