I guess whether he is thinking clearly or not, you kind of have to go by what he says. I wonder if he could be pushing you away now that he has this diagnosis. I would try to have another serious conversation about the future, where you two decide what the next steps are, what the possibilities are.

When you said that you were hoping he could come home and 'work on US,' did you mean that you guys have issues you are working on outside of this?