Something to do with yesterday's UK General Election result, I understand.
I tried to cheer her up with a link to the now traditional pictures of Dogs at Polling Stations, but that isn't working.
I tried taking her out for a walk but she complained that it is cold, grey, windy and wet. (Actually, she's right about that.)
I tried 'posing nicely' for her in my best Christmas bandana.
But all to no avail.
And now I am feeling bad too, failing in my role as official cheerer-upper.
Do you have any ideas that might help?