After MLC, do they understand their behavior?

[canadianMrs.]

Unfortunately, I have to move. I am now legally bound to that house. When I made the decision, yes part of it was me fleeing, but part of it was I knew I would need the help. I had no thought (then) of reconciling, and wanted to start fresh with friends and family to help me. I was overwhelmed with the idea of being a single mom to 3. H wasn't around much. Plus, OW was still in the picture until a few weeks ago, and I couldn't handle ppl around here thinking they need to update me what was going on with them. My kids were starting to hear things too.
Part of me is still not sure we can/should get back together. I really feel that it can't be here, if its to happen. I have a strong suspicion that if I stayed, H would go right back to his old ways. Not necessarily cheating, but working 24/7 and neglecting his family again, and then me feeling isolate/resentful again.
He doesn't have to change careers, but if we are to make it, he needs to give up his current position. There is a reason why most others who do it are a lot older. It doesn't mesh well with a young family. He could easily transfer; he just has to see it.
H and I talked last night, and he says he understands that completely.
I know this will be hard on everyone, it already has been.