I don't know that I would consider the key to be cake eating or a positive sign. Looking at the ages of your kids, I'd say it was an attempt to deal with the practical realities of young kids having two homes.
Me: 44 H: 44 Kids: 20, 16, 16, and 10 Together/Married: 22 years H announced he was emotionally detached and considering D: 4/4/16 H announced he is going to try to stay and reconnect: 5/1/16