maybe they think coming out now would take focus off the movie, besides its their life and their relationship, maybe they truly just want to keep something private and to themselves
I don`t think they are dating, I think they are just really good friends and it was an issue about Love so I think it was kind of for show, there were pictures just put up on some other sites of her wtih one of the members of Kings of Leon and they look like their holding hands and all.