Was he trying to warn her that she was doing nothing but putting other people in danger? And if so, to what purpose? He seemed to think that she might be interested in joining forces with those who would overthrown her master. What could possibly give him that idea? She had been a loyal Death Eater from the moment she was given the choice to comply or die. Lord Voldemort wanted her as a pet he could parade around to show how benevolent and generous he was to those that willingly chose to serve him.