Tea With my Sister

I know that I am sane
A reasonable man.
I have a logical mind.
All my friends tell me so.
And yet I sit here in the dark
And I talk to an empty chair.
And I tell you all that happened
Since we spoke before.

I only do it once a year.
Perhaps a year will come when I shall stop.
But this was the day when you left me.
You didn't wait to say goodbye.
You broke our arrangement.
It was the only birthday that we didn't meet for tea.