Fleur was there as well. They were keeping up their pretence of mere acquaintances so didn't interact much. In fact, it was slightly amusing. More often that not, when Hermione was integrating herself with Patil and Weaselette in the kitchen, she would feel Fleur's gaze burning on her back. Bill Weasley seemed to be after her and Fleur - while disgusted - played along. It would help them in the long run.