Hi again Bill, I know this isn't easy but you have to just totally disengage & concern yourself with what you are doing. If your W was already obviously angry/short with you when she got home then anything you do, include sit in the same room or breathe near her! My H did this to me & I just removed myself to another part of the house or went out. Did such odd things as going out for dinner by myself so I didn't seem to be "waiting" or getting on his nerves.
