Second, I hate to say this, but this happens to all of us. They leave and then things begin to break for a while. I think it's God's way of turning our focus off the spouses and back on to what we need to be doing for ourselves.
I promise, it will get better.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.