I had hoped that his reluctance meant that he did not want to leave me. But he said "Oh no, I think have got to go so I can figure out if I've done the wrong thing".
I recall my exH saying, "I may be making the biggest mistake of my life, but I need to try it to find out". Why not just try harder on the marriage????
Also, he didn't plan to tell anyone until after the divorce was final....so I ended up being the one to tell my MIL! GGGGRRRRR!