User blog comment:Miskos3/Fairy Tail Chapter 488: The Two of Us, Always, Review/@comment-24442815-20160606194639/@comment-7418318-20160607063928

Brandish hates doing troublesome, annoying and unpleasant stuff. It's one of the first facts we learned about her.

Besides, I wouldn't be surprised if FT would bar her from meeting with Marin. Letting two potentially hostile prisoners get together greatly increases the chance of them finding a way to escape. Supervision can reduce that risk greatly, but it's still not a good idea, especially not with such high-stakes prisoners.