Skipping stones

I got a long email from a woman I met almost twenty years ago
We spent one term together in the same university residence
And I have never seen her since
Yet we keep in touch
Our children are the same sex and age
And the things she writes and the things she thinks about
And the way she's honest about the fights she has with her husband
Are like reading my own writing
We really only connected for a brief period and I marvel
18 years later