Lily’s bright green eyes were slits. Snape backtracked at once.
“I didn’t mean—I just don’t want to see you made a fool of—He fancies you, James Potter fancies you!” The words seemed wrenched from him against his will. “And he’s not… everyone thinks… big Quidditch hero—” Snape’s bitterness and dislike were rendering him incoherent, and Lily’s eyebrows were traveling farther and farther up her forehead.
“I know James Potter’s an arrogant toerag,” she said, cutting across Snape. “I don’t need you to tell me that. But Mulciber’s and Avery’s idea of humor is just evil. Evil, Sev. I don’t understand how you can be friends with them.”
Harry doubted that Snape had even heard her strictures on Mulciber and Avery. The moment she had insulted James Potter, his whole body had relaxed, and as they walked away there was a new spring in Snape’s step…
And the scene dissolved…
Harry watched again as Snape left the Great Hall after sitting his O.W.L. in Defense Against the Dark Arts, watched as he wandered away from the castle and strayed inadvertently close to the place beneath the beech tree where James, Sirius, Lupin, and Pettigrew sat together. But Harry kept his distance this time, because he knew what happened after James had hoisted Severus into the air and taunted him; he knew what had been done and said, and it gave him no pleasure to hear it again… He watched as Lily joined the group and went to Snape’s defense. Distantly he heard Snape shout at her in his humiliation and his fury, the unforgivable word: “Mudblood.”
The scene changed…
“I’m sorry.”
“I’m not interested.”
“I’m sorry!”
“Save your breath—”
It was nighttime. Lily, who was wearing a dressing gown, stood with her arms folded in front of the portrait of the Fat Lady, at the entrance to Gryffindor Tower.
“I only came out because Mary told me you were threatening to sleep here.”
“I was. I would have done. I never meant to call you Mudblood, it just—”
“Slipped out?” There was no pity in Lily’s voice. “It’s too late. I’ve made excuses for you for years. None of my friends can understand why I even talk to you. You and your precious little Death Eater friends—you see, you don’t even deny it! You don’t even deny that’s what you’re all aiming to be! You can’t wait to join You-Know-Who, can you?”