Here are a few suggestions for other funny, touching, books:
Divine Secrets of the Ya-Ya Sisterhood by Rebecca Wells
Siddalee Walker needs her mother's help with a play she's writing about
women's friendships, so Vivi sends her the letters, photos, journals,
and souvenirs from the Ya-Ya sisterhood. This group of girlfriends was
wild and clever--and stuck in a small town where they were expected to
raise babies not Cain. (catalog summary)