thisyesterday you make a good point saying to ask him how he wants to be remembered by his DC when they are grown up. That puts it into perspective.
Euthesia The thing is, you cant change your H and his approach to work. You can encourage and support but that's it really, he is a grown man who makes his own decisions and you're not responsible for that. It may change in time, maybe this is just a tough time.
It might be worth asking him how he feels about work, then you could pick up if he is worried about not keeping up, about redundancies, about wanting to forge ahead etc.. At least you would then understand why it is so important to him and that might make you feel more understanding towards him when he does it. Try not to put any hint of criticism in there when you ask him, keep it very light, otherwise it might make him defensive and not achieve what you want.
I used to hate H's phone and his laptop, my heart would sink when he was constantly on the phone. H seemed to use work often as a way of not joining in the routine bits of parenthood. My H also worked long hours and often came home at 8-10pm. I felt so alone a lot of the time. I could cheerfully have thrown his phone in a big lake. I wouldnt recommend getting annoyed with him if he is a workaholic or to keep asking him to spend more time with the family, as it could have the opposite effect (as I said H & I are now getting divorced). As another MN said, at least he has a job.
The only thing you can do is try to understand what his job pressures are like. And talk to him about what he wants from his life. And share the bits he is missing with the DC. You never know, if you arrange fun days out without him he might feel he is missing out - (Wouldnt it be great to say this is a phonefree outing so you can come or we can go on our own!! You could always take DC together to a nice swimming pool where phones arent allowed...! Cinema. Tromping through streams with wellies on in a valley where the phone reception is poor..!)
Good luck honey, I know how hard it is to feel their work is taking over your lives. xxx You can end up feeling like a married-single-parent a lot of the time.