Ron didn’t take it well, Harry sided with Ron, and Hermione just clenched her jaw, anger and betrayal in her eyes, before turning her back to them. Yet she never stopped helping, they never stopped helping. Hermione and Malfoy discovered that fiendyfire could destroy Horcruxes, it was because of Malfoy’s brews that many lived, it was because of Hermione’s knowledge that many survived. Narcissa suddenly appearing after Voldemort casted his killing curse, killing the Horcruxes that lived inside him, was the reason Harry was alive, the reason Voldemort had been defeated. She sacrificed herself, but Harry knew she didn’t do it for him, she did it for a better future for her son and Hermione.