My ML,
Something to keep in mind is men and women treat their jobs differently. For men, it's a status symbol while for a woman, it's a means to pay the bills. I recall when my H lost his contract (he was an independent consultant) and didn't work for over a year, he was devastated, became depressed and withdrew from everyone and everything he knew - including me. This is not to justify your H not spending time with his family, but rather to give you some important perspective.
Also, you mentioned that he can't simply quit his job and look for another due to monetary reasons. With this, what options does he really have? It sounds like he HAS to keep working, and that's a lot of pressure on 1 person - man or woman. I was caught in the same situation in my last job too. Since my H couldn't find a job, I had to carry the load. And, even though I absolutely LOATHED what I did, I didn't have the time to even look for a job b/c I was working 12-16 hours a day, nearly 7 days a week! I eventually just had to quit my old job and start looking. Fortunately, I was able to find another (far better) job within a few days, but it still was very scary time for us.
Lastly, I don't know what line of work he's in, but I know many jobs that when the employer asks a salaried employee to work overtime and the employee doesn't comply, he/she will lose the job. Most of us have employment that requires overtime with no additional pay.
Again, I'm not trying to justify your H's actions, but, at the same time, you really need to look at his position too.
With this, I would recommend that you and your H sit down and discuss this issue (uninterrupted). Remember, LB's will only put him on the defense. You must show him why it's important for him to cut down his hours and be with the family. If his current job doesn't allow it, then the 2 of you must come up with some joint solution that will allow him to look for a job. Keep in mind that by telling him he needs to get another job is not going to work. It's like telling someone to dig a trench, but there are no tools. Can you work full or part-time for a while so that you have some discretionary income so that he can look for antoher job? Can you help him write and send out his resume? Can you help him schedule his interviews? Can you help with some of his chores so that he can have more free time do find another job? Note: I actually found my H's next contract b/c he became so depressed and withdrawn, he didn't have any inclicnation to look for another job, and I knew the only thing that would get him on his feet is another job. Weird how people work, but that's just how it is.
Give that a shot, and don't get discouraged. If he really cares about the family like you say, he'll work on this. You may just need to give him some options.
Good luck!