A lady wrote a book about when people r relived that their spouse has died,anybody know the name of the book?

Answer 1

There is a short story called "The Story of a Hour" by Kate Chopin which may be what you are thinking of. It's hardly a book, however. It is one of the shortest short stories I've ever read. Good though.

Answer 2

Perhaps you mean:

Liberating Losses: When Death Brings Relief
by Jennifer Elison & Chris McGonigle

Good luck!