My wife left three days after our twin daughters were born and never looked back. Eighteen years later, she walked into their graduation ceremony with expensive gifts and a story about why she'd been gone. She wasn't prepared for what the girls had to say. I had a box in the back of my closet that my daughters didn't know about until they were 16. I want you to keep that in mind while I tell you the rest. Lily and Grace were six hours old when Claire looked at me across the hospital room and said, "I can't do this." My wife left three days after our twin daughters were born. I thought she meant the exhaustion. The fear. I'd felt both of those things too, standing in that room with two tiny humans who needed everything from us and couldn't ask for any of it in words. I reached for her hand. "We'll figure it out." Claire pulled her hand back. "You're not hearing me." She said it slowly, the way you say someth...