"Sounds good. Together or separate?" Charlie didn't like the idea of her working on her own, but he wasn't going to tell her she couldn't. He would prefer to keep an eye on her.
"You can sleep at the mansion tonight if you want." It wasn't exactly an invitation for an inappropriate sleepover. Just letting her know if she didn't want to sleep in her apartment alone, if she was actually doing that. "How's Jake? He can come if he's round."