Surprisingly this:

Correspondence M/Z (Jo - for thirty, We - far beyond forty)
M "Happy New Year! I finally found you!! How to live, family?"
J - "In divorce, the third year... The son went to school this year... It was unhappy, somehow"
M - "Yo-ho!!! So you are free now? Can I take care of you? The Yoshkin cat. I had dreamed of it since the 6th grade!and "
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The age difference is about 10 years.
In the sixth grade, he dreamed of caring for a baby?