This was about us, the Marauders, four stupid boys who did stupid things...
That statement haunted her. Peter made it clear that Lily hadn't done anything. Meaning he hadn't even considered her when he chose to made a decision that would lead to her death. And put her son in mortal peril. She was trying not to dwell on that. She wanted to remain calm and give Peter a proper chance to explain himself to her.
She couldn't eat breakfast. Thankfully, she didn't have to make excuses to James or Sirius, which was good since Lily hated fibbing. Especially to James. She made her way towards where she was meeting Peter, ignoring the sick feeling in her throat.
Hearing someone getting closer, she offered Peter a slight smile. "Hi, Peter. I'm as good as one can be under the circumstances. And yes, I think we should walk." It would give her something else to focus on if she felt herself losing her grip on her temper.