A/N:  I had to guess at Alfred and Victor's ages. Also, this is when you two start dating, just to clarify.

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James Gordon
James's Age:  30
Your Age:  23
Age Gap:  7 years

Oswald Cobblepot
Oswald's Age:  25
Your Age:  21
Age Gap:  4 years

Jerome Valeska
Jerome's Age:  20
Your Age:  18
Age Gap:  18 months (or 1.5 years)

Jeremiah Valeska
Jeremiah's Age:  22
Your Age:  21
Age Gap:  9 months

Edward Nygma
Ed's Age:  24
Your Age:  27
Age Gap:  3 years

Bruce Wayne
Bruce's Age:  14
Your Age:  15
Age Gap:  3 months

Alfred Pennyworth
Alfred's Age:  40
Your Age:  28
Age Gap:  12 years

Victor Zsasz
Victor's Age:  35
Your Age:  20
Age Gap:  15 years

Jonathan Crane
Jonathan's Age:  16
Your Age:  16
Age Gap:  6 months