Hermione offered a small smile when Draco mentioned that Harry had helped his mother. She didn't know what the context was, but she knew it had to have been something good. "Well, you were lucky to get out alive, then," she spoke up, "Voldemort never did like it when people tried to back out."
Draco didn't seem to know what she meant by Horcruxes and Hermione furrowed her brow. "Yes, the Horcruxes... Voldemort needed them, he made loads of them. You don't know about them?" she should have expected as much, considering how closely guarded the information had appeared to be.
When he told her that Molly had killed Bellatrix, Hermione gasped, only to completely lose her breath when he said one of the twins had died. "A- I," she couldn't even form a sentence at the information. Part of her didn't want to believe it, maybe he had been mistaken. Maybe he was confused. He had to be. She felt her eyes well with tears and Hermione immediately looked down at the floor in an attempt to hide the surge of emotion from Draco. Instead of attempting to finish whatever sentence she had tried, she fell silent.
Despite the desire to hide her tears from Draco, she lifted her head to look at him when he mentioned Crabbe died. She hadn't really expected any pertinent information about those thugs, but he had surprised her yet again. A tear slipped down her cheek and Hermione sniffled, quickly swiping it away. "I'm sorry," she apologized quietly to him for his friend's death. Even if he'd told her that Crabbe had died trying to kill her, she'd heard the way his voice changed at the admission.