The author started looking forward to her empty nest. Courtesy of Susan Teresa My looming empty nest filled me with sadness, so I made exciting plans. But as my twins headed off for college, my oldest moved back in. I'm learning midlife transitions rarely unfold the way we imagine. I hadn't known that choosing to be a parent was also saying yes to an inevitable series of heartbreaks. It starts small. In their early teen years, you realize they've started keeping secrets. The number of subjects