GO- I am so glad that you found this board. You will get lots of great advice. My sitch is exactly the same. My H worked 24/7, I worked full time and have a billable hour requirement, 3 little kids. We were going nonstop and it caught up to us big time. We started to regret things about one another and then stopped supporting each other completely because there was not enough time in the day. H started an EA with a co-worked who made him feel needed and appreciated. So I know exactly where you are coming from. I helped me to know that I was not alone and that other people have heard about the exact same script from their WAS.
When my H left, he was mean and angry. While he claimed that he wanted my support (his reason for the A), he clearly did not want it after BD. I am sure that he thought it was a little too late. So I completely backed off. I have let my H drive the communication. It has worked to get us back to more neutral ground.