Straightforward person or not, for someone who has just lived Dday, your "composure" says a lot about you and your recent description of your career plans enforces that. You want a clean cookie-cutter marriage that earns at least 6% annual return. I think you want to save the M not to save the M but because divorce would prove you had failed. It would invalidate your life's entire premise.

WH is not what you want because he didn't buy into your 10 year business plan and you are not what he wants because he actually wants companionship.

You don't live together. You don't want to have a family together. What is it you are trying to save? A Norman Rockwell picture?

My sister was a CPA whose number one priority was money. She married another CPA whose number one priority was money. What a recipe for disaster! (and it was).

There is a lot that you could learn here so your next relationship might have a better chance of success.