I've yet to have a post divorce relationship. January will be the two year anniversary of the bomb and one year anniversary of the divorce. Fear and having a plate full of other issues keep me from seeking a relationship though I'm feeling closer to dipping my toe in the water.
Your mom is a very smart woman. I can't imagine the turmoil your special one is going through in the throes of divorce, especially if she has a strong belief in what a family should be. She can't even start to catch up to you until her divorce is final.
You mentioned the red flag over her being separated. That red flag is for your benefit. Do you want to be the rebound guy? You know all too much the emotional chaos and devastation abandonment can bring. It's wonderful that you know how to be a great partner all the while hoping for the best and knowing the worst is the best for her... and in the end, you.
Ah and yes, peanut gallery, I do hope to hear about your post D relationships and how you've managed them. Gotta share experiences here so we all get it right the next time around!!