Being alone in his flat all day and evening gave Hermione a lot of time to think. Truthfully, there hadn't been much else for her to do since he "rescued" her from the streets of Aberdeen. Reading passed some of the time, but even she couldn't read every hour of the day she wasn't sleeping, eating, or taking advantage of his shower. Her mind would wander, the ink on the pages would start to lose their meaning. Existing on the run when her safety wasn't guaranteed and she had to keep finding adequate shelter kept her usually from the luxury of dwelling too much on unpleasant topics. Draco's warded flat allowed her the freedom to obsess and dwell as she liked.