The North Texas-based widow of Chris Kyle, the Navy SEAL who became a household name because of the book and movie, “American Sniper,” is sharing her memories of life with and without her husband of 10 years. “American Wife: A Memoir of Love, War, Faith and Renewal,” published by William Morrow, was written with Jim DeFelice, who co-authored Chris Kyle’s “American Sniper” autobiography, which was a 2012 best-seller and inspired the blockbuster 2014 movie starring Bradley Cooper and Sienna Miller.