Standard deviation

"The celebrated author of Single, Carefree, Mellow, returns with her debut novel--a rueful, funny examination of love, marriage, infidelity, and origami. Divorcing his wife to marry his girlfriend, Audra, is the one impulsive thing Graham Cavanaugh has ever done. Audra is charming and spontaneous and fun, but life with her can be exhausting, constantly interrupted by phone calls, burdened by houseguests, and populated by old men with backpacks full of origami paper. As Graham and Audra struggle to define their marriage and raise a child with Asperger's, they decide to establish a friendship…