People keep saying that it doesn't look like Danielle is well-liked by the other girls, but I don't see that at all. Especially in last week's episode, I got the impression that she gets along fine with them, only probably was closest to Dani. In the VTs and non-results stage stuff, she seems to interact fine with them, but onstage during the results she seems to get her "game face" on and want to stay that way until the cameras are off. Looking at how the other girls act around her, though, I get the impression that they know this about her and are just letting her do her thing, but I do see them as being supportive. For instance, when Jessica and Stephanie were declared free, they both seemed to be giving encouraging looks to Danielle as they passed her, and when Danielle was declared free, I could see a few of them standing up with open arms to receive her. Also, the hug she and Sophie shared seemed genuine to me, and what Danielle said about Sophie in the VT about "who is the public's favorite" sounded to me like they get along fairly well.
Also, in the Danielle's VT on the performance show, when it showed her hugging Dani backstage, I noticed a flash of yellow in the shot so I rewound it and watched again, and noticed that it was Stephanie coming up to them and putting her arms around them both. People who have been to the live shows have also said that it seems like all of the girls, including Danielle, get along extremely well.
I don't know if Danielle is best friends with everyone in the house, but the all of the girls do seem to get along well enough from what I can see on the show.