Re: The End
After the meeting was over and Dorcas was actually able to get Dumbledore alone, she would have told him all about her whole bait plan, basically saying that Ed was going to get her the money to set up a house, make it look lived in and all that, that she's working with Gideon to figure out the best wards to put on the place and once that's all set up, she's going to go back to work and make it look like she's trying to get back to life as usual, while starting a campaign of pissing off the Death Eaters as much as possible so that they'll come after her. They'll set off the wards, the Order can come running and they can have an ambush of their own.
She would have been a little more detailed than that because she wants Dumbledore to believe that she's actually thought this through, but it was definitely clear she had committed herself to this whole thing. And then she would have explained that she was telling him so no one could say she was keeping secrets but she really didn't want the rest of the Order to know because she's kind of putting her life on the line here and if they do have a spy, that's definitely a problem. And she would have admitted she just didn't want people telling her she was being reckless and stupid again too.