That night we went to bed angry. We lay each with our back turned to the other--both unable to sleep, but unwilling to continue the fight. I felt her shift and fuss. Stressed, like me, and unable to relax. For several minutes she was still, but then she slipped out of bed and abruptly walked out of our bedroom. I listened for sounds from the bathroom, but heard nothing. I sat up, straining to hear any noise. Was she cryin...