Perhaps she finally had her answer for who it was that hired Draco Malfoy to track her down. It made sense. Malfoy was something of a renegade, neither fully on the side of the Death Eaters nor on the side of the Resistance. Hated by both sides, it wasn't inconceivable to imagine that he would seek out the other side for additional work. Maybe Wood had been exploiting his unique set of skills to ensure a day would come when he could finally exact his revenge.