Oooo.. good job stu, on pulling out that one critical sentence from Karen's post, that I actually MISSED READING somehow! sorry
Karen, this is a wonderful thing from your husband.
I think that the main thing you need to do further, at this point, is get a commitment from your husband as to when his schedule will change.
In other words, change his 'excuse', into a commitment. and ideally, put some form to it. As in, "right now, you are working too hard, for us to have good time together. After this is done, you're going to scale back, and not take on that much work, and make us your first priority, right?"
Otherwise, like stu says.. there will always be some new crisis that comes up, to replace the old ones. If he doesnt have the commitment to put your marriage first, then he will just take up a whole new set of extra responsabilities, to replace the current load of "too much responsability/work commitment".
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle