Genevieve and Jeremy have known each other since they were seven, and have been summertime best friends at Camp Meira, a Jewish overnight camp in the mountains. As campers, and then as staff, their friendship was a constant, something neither wanted to change, no matter how tempting those changes might be. Then, last year, with little warning, Jeremy left camp early. After that summer, Gen left the country on a graduate fellowship. Now, a little over...