For me, the lead up to her leaving was almost worse than her being gone. The first weekend was excruciating emotionally, but I've since been able to settle into somewhat of a routine, and try to be there for my son. I've made a great effort to make sure the house is running smothly, and he and the dog are being well cared for. We're doing fun things together, and generally just doing what we would have if my wife were home. Best thing I can suggest is to keep busy, and take time for yourself when you can.