Hermione stared at him in disbelief. An hour ago, she thought he was going to try and stop her from going in search of Greyback; now he was offering to help her get to him. All she had to do was tell him what her plan was. But, she didn’t really want to. For some reason, telling him she intended to seduce Greyback in order to get close enough to kill him felt like a betrayal. She wanted Snape to respect her, but she felt that if she went about her revenge so underhandedly, she would lose it.