LL, this is just spam that everyone gets. I just got one for impotence! Really, don't let your mind wander too much in that direction...
Some time ago I read (somewhere) a story about a man who really dedicated his life to work, but his M suffered as a result. This ended up biting him many years down the line, but he took the initiative (at the threat of his M) to change his hours. Since he did that, not only did his W feel better and his M was stronger, but he felt free from the bonds of his work. My point? Clearly your H's work is a significant problem with your R. Can you seriously talk to him about changing things, or do you think your sitch is still too delicate?
I think this control over one's company is stronger for those who've raised themselves up by their bootstraps and have become successful on their own after lots of hard work. To me, given your previous posts, sounds like it might fit the profile of your H???