“Okay, thanks for coming everyone. And next time the Marauders might kindly let us know who-is-coming,” she said, eying them off. “One day we might be faced with someone who has found something out about us, and what we do. Of course, for us, we do not want to kill them. So what can we do to make sure the information they have heard won’t go back to you-know-who? We can -”
“KILL THEM!” Sirius said loudly.
“No,” said Remus calmly, looking back at Lily.
“We can erase their memory,” she said. “The spell is Obliviate. We’re not going to practice it because… well I don’t want any of you to have your memory erased, but we need to know how to do the spell.” She held out her wand arm and held an invisible wand. “Obliviate,” she said, and twisted her arm to show everyone how it went.

Then, all of them started doing this. Remus made his way over to Lily, and said “I saw you. Just before. With James.”
She blushed and said “Oh yeah? He hid me from Severus,” she said.
“No, no. You do love him, Lily. Just say yes!” then he walked away.