Hermione felt a strong urge to stop him, to walk away. She felt like it wasn’t supposed to be her. He should’ve been proposing to some pure-blood pretty witch. She felt like she was watching everything unfold from a stranger’s view. He looked into her eyes, and she gathered her will not to look away. Malfoy was seeing right through her. It felt like there was nothing hidden left. She even checked if he was in her mind for a second.