I researched this, and "Nellie" (Mrs. Lovett's first name—I don't think I've ever used it before) means what I say it does in this story.
It was rather late when he entered the pie shop, the necklace resting heavily against his hip. Mrs. Lovett wasn't around; she could have been asleep, for all he knew.
It didn't matter. Somehow he knew that she wouldn't mind being woken up if he was the one doing it.
He found her in her parlor, sleeping in an armchair. The room was barely lit—the fire in the fireplace was dying and dying fast. A book—The String of Pearls: A Romance—was resting in her lap. He took her shoulder and shook it gently.
She woke with a start.
"Mr. T?" She asked groggily, rubbing sleep from her eyes. "What're you doing up?" The question culminated in a giant yawn.
He felt ridiculous. "I've brought something for you," he said quietly.
She sat up a little straighter. "For me?" She asked, her voice slightly suspicious.
"Mmm." He said, monosyllabic as always.
A smile spread over her face. "What is it?"
He knelt down beside her and produced the necklace from his pocket. It glittered in the dying light of the fire. Mrs. Lovett's eyes widened. "This is…you're giving it to me?"
He nodded grimly. Mrs. Lovett was in total disbelief. He took her hand and placed the necklace in it. "I have no use for it," he murmured quietly. She continued to stare at him, openmouthed. "Thank you," she said suddenly. He nodded.
He rose silently, then turned away from her to head back upstairs. When he was almost out the door she spoke. "Wait."
He did, though he didn't want to. "Could you put it on for me?" She asked sheepishly.
He sighed heavily but obliged, knowing that it wasn't necessary for him to help her, because she had gotten it on without his help earlier.
Mrs. Lovett rose from her chair and positioned herself so that she was directly in front of him.
He took the necklace and opened the clasp.
It slid down her pale skin in a way it hadn't for Lucy. It seemed almost wrong that such beauty was applied to Mrs. Lovett, who was almost frightening.
"Thank you," she said quietly.
"Mmm."
He was nearly out the door when she spoke again. "Why?" Her voice was honestly curious, but sadness shone through the curiosity.
He frowned, thinking about the meaning of the necklace. "Light".
"Because…you are my light." he said. After the words escaped his lips he instantly regretted them. He didn't like to give her false hope. But he also realized something that surprised him.
The words were true.
He left her there, in the glowing parlor.
Mrs. Lovett was shocked and surprised and extremely pleased with the events that had transpired. She fingered the necklace with a smile on her face. "Ooh…" she whispered. "How did Mr. T know that my name…how did he know that "Nellie" means light?"
It didn't really bother her that the necklace might have once belonged to Lucy. It didn't bother her that she was silver to Lucy's gold. Mr. Todd seemed to like silver very much, if his razors were any indication.
"Ooh, Mr. T…"she smiled and repeated what she had said the day he had returned. "Silver's good enough for me…"
Damn. I forgot to put the furniture back in the barbershop. Um…let's pretend Mr. Todd put it away while he was deciding whether or not to give Mrs. Lovett the necklace, okay?