For me to make the move, I just need to acknowledge and accept that it is over and there is no hope for a new relationship. Part of me is hoping that things will change based on the changes that I have made. She sees the OM at work as they have the same employer. He was putting pressure on her early in the New Year to make a decision and the fact that she still hasn't decided gives me some optimism that she sees value in staying where she is.
In terms of accepting that there is no chance for a new relationship with my wife, I am working towards giving myself a deadline of June 30. At that point, unless there is any improvement I will need to accept reality and move on. We can then use the summer to address things with the kids and allow my wife to find another place to live in advance of the new school year in the fall.