A. Manette Ansay’s engrossing book “Good Things I Wish You” skillfully intertwines two unexpected romances—one historical, the other contemporary—across thousands of miles and more than a century. In this book after a traumatic divorce, novelist Jeanette is struggling with emotions of indifference and loss. She decides to write a book about the long-lasting connection between musician Robert Schumann’s wife, Clara Schumann, and Johannes Brahms, the attractive young composer who was her husband’s protégé.