With my H, pushing him to make a decision would have made him more likely to leave than to stay. I thought it was in the best interests of all of us to give him all the time he needed to decide to stay.
How have you framed this for your kids? I don't think it has to be unhealthy for them.
H and his siblings all bought the "Dad is sleeping in the basement because it's cooler and more comfortable" excuse and didn't realize until decades later that their parents' marriage had been hanging by a thread for years.
I do sympathize. I'm the sort that likes to know what is what and be able to plan. But I know in my case, I had to learn to let go of that in order to give the marriage the best chance.
Best of luck.
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