She was telling the truth; Harry had decided after he found out that he was a Horcrux that he would end it and leave Hermione to tie up the other loose ends. Sometimes she felt her anger and resentment towards him for that, but it was hard to respect those feelings through her grief. She did everything she could to push it away, numb herself. He had used a Dark spell that had slipped him into a semi-conscious state and she had barely found him in time. Alone and scared, the locket whispered to her, telling her what to do next and making promises. Promises that had been kept. 