When I answered the phone he asked me what I was doing and how things were going. Is that a potential bit of progress or am I just grasping for straws?
It could be progress, it could be absolutely nothing, it could be just him feeling a little guilty. I wouldn't place any weight on it.
Don't feel guilty. He wants to break up the family, he left his wife and girl, house and car behind -- that's all on him.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final