So, I haven't seen a story like this.
Okay I didn't really look for one like this. But whatever. Enjoy?
Took the first portion from a Tumblr thing I posted five-ever ago. Changed it a bit.
"Please, stay here." He said, brushing a hand across her cheek.
"No, I have to fight-" She argued, walking away and grabbing her robes from the wardrobe. Remus appeared in front of her a second later, taking the robes from her hands.
"No, you don't. You have to rest. Teddy's barely a week old. Dora, stay home. I'll send word when it's over, to let you know I'm alright."
"Remus, you don't have to go either-"
Remus wrapped his arms around her. "I'll come back. Dora, I promise, I'll come home."
She had stayed home, like he asked. No, like he begged. She had given him a kiss as he reached the door, a deep kiss that would have definitely lead to more if he wasn't about to leave and if she hadn't just given birth days before. She had made him promise to come home, and he did. He promised.
She didn't sleep. She couldn't. She paced and paced, managed to annoy her mother, and Teddy, who cried most of the night. So she walked back and forth, the tiny babe in her arms, unsure if she was comforting him or herself.
Andromeda tried to get her to relax and rest with tea, and when tea didn't work, threats. When even threats didn't work, Andromeda had given up.
It was a few hours after dawn when someone knocked on the door. She handed Teddy to her mother, and went to answer. She was confident that it wouldn't be bad- after all, Death Eaters didn't knock.
But if it was Remus returning, why did he knock? Was Remus injured, perhaps?
She opened the door and Kingsley stood there. His robes were torn and bloodied, his eyes were staring at the ground. He looked up, and when their eyes met, she knew.
"No- no, he's fine- Kingsley, tell me he's fine." She said, her strong resolve crumbling around her. Suddenly she felt sick, as if she was about to faint. Kingsley, say something. Please. Remus is fine, he's fine. Maybe he's in St Mungo's, but he's alive!
Kingsley didn't say anything, he didn't have to.
A sob escaped her, and next thing she knew, she collapsed against Kingsley, sobbing. He just held her, allowing the new widow to cry. She didn't register her mother's voice speaking to Kingsley or Kingsley practically carrying her back into the house. She barely registered the news that Voldemort was dead, because it didn't matter. Remus was dead.
Andromeda allowed Molly to take Teddy. She was tired, as she had been caring for Teddy for the last week. Dora had withdrawn, barely even looking at her son. It was the day after the last of the funerals and the Burrow was quiet. Andromeda preferred this. She had asked Arthur, Molly, Charlie and Hermione Granger to meet with her. She had spoken to Harry, and Harry had told Andromeda almost every detail of the last year.
One thing that had stood out to Andromeda was the story of Hermione modifying her parents' memories to keep them safe. What if this was the key to helping her daughter? Surely, she could ask Hermione to help her cast such a spell?
"I want to get straight to the point." Andromeda said calmly as soon as they were all sitting around the table. "Charles, you knew Nymphadora quite well in school. I was a little disappointed when you two did not marry,-"
"With all due respect, Andromeda, I don't see where this is going." Charlie said.
"I need a favour." Andromeda continued. "Nymphadora has pushed Teddy away, and I know why. She's a new mother, and a new widow. She is struggling."
"I still don't-"
"Charlie, I need you to marry my daughter."
Molly and Arthur looked shocked, Charlie looked horrified and Hermione spoke first.
"Mrs Tonks-" Hermione began.
"Andromeda, dear, please."
"Right. Andromeda, that would be in violation of the grief period. Tonks wouldn't inherit anything that Remus left her if she remarried before the end of six weeks. And how does Tonks feel about this? She'd have to agree-"
"She doesn't have to know." Andromeda said.
"Andromeda, I don't think any of us are following you right now." Charlie said. "Are you suggesting an arranged marriage?"
"No." Andromeda explained. "What I'm suggesting is we help Nymphadora, make her believe she was married to Charlie all along, and that Teddy is Charlie's son."
"No." Charlie said. "That would be insulting to Remus. Teddy is the only one left to carry on Remus' family name, you're suggesting we erase that and put mine in its place?"
"Just for a few weeks." Andromeda said.
"I'm sorry, Andromeda, but what do I have to do with this?" Hermione asked cautiously.
"You modified your parents' memories. I would trust you could do the same with Nymphadora."
"You're suggesting we erase her memories of her husband?" Charlie asked.
"Just for a few weeks." Andromeda repeated. "Please, just to keep her from abandoning Teddy. If she believes that you're her husband, perhaps she'll be alright."
"And what about after?" Hermione asked. "How will she feel after?"
Andromeda shifted slightly. "Perhaps we don't mention their marriage."
Molly's jaw dropped. "Andromeda, what do you suppose we do, then?"
"Perhaps, after a few weeks, you can simply break up with her Charlie. We'll restore her memories of Teddy being Remus', but she doesn't have to know that Remus came back in September-"
"Andromeda, this is wrong." Charlie said. "To lie-"
"Please, Charles." Andromeda said. "Just for a few weeks."
Charlie looked at his parents and then at Hermione, who provided no input of their own. He finally looked back at Andromeda. "I'll give you three weeks. But after three weeks, we tell her everything. Not just your version."
"But-" Andromeda began.
"It's either that, or I don't do it."
Andromeda thought for a moment. "Three months, and we'll tell her whatever you wish."
