Here is what you do from now on. On your way home from work is there a park or something close to your house you can stop at. If there is go there when you know your W will be at the house. Get out and take a 10 to 15 minute walk. Smell the fresh air, take deep breaths and let the pressures of work out with each breath. Then proceed home with a clear head and a renewed PMA.
Make sure its close to home so you don't end up back in traffic but far enough away that your W does not know your there. Also if you don't expect her to be there and she is you can go back, decompress then face her.
