Hence Gwendolen had been all ear to Lord Brackenshaw's mode of accounting for Grandcourt's non-appearance; and when he did arrive, no consciousness--not even Mrs. Arrowpoint's or Mr. Gascoigne's--was more awake to the fact than hers, although she steadily avoided looking toward any point where he was likely to be. 
Hence Gwendolen had been all ears to Lord Brackenshaw's words about Grandcourt; and when he did arrive, no-one was more awake to the fact than her, although she steadily avoided looking where he was likely to be. 