PsySara, that all sounds good. Congratulations on the new job! It's also good to hear the realism in your update about the small arguments and challenges of being busy but still being responsive to each other and understanding each other's needs. It seems like life together doesn't need to be perfect in order to continue reconciling. If you can sustain a functional life together where you enjoy being together most of the time and both contribute in ways that make the other happy then that would be wonderful.
Just out of curiosity, were you ever able to understand any of the psychology behind your husband shutting down and being so hostile previously? Did he seem to reveal anything he learned about himself when he was begging for you back?