Elizabeth, as they drove along, watched for the first appearance of Pemberley Woods with some perturbation; and when at length they turned in at the lodge, her spirits were in a high flutter. The park was very large, and contained great variety of ground. They entered it in one of its lowest points, and drove for some time through a beautiful wood stretching over a wide extent.

– Jane Austen

Pride and Prejudice, Chapter 43. The chapter’s opening lines describes Elizabeth’s arrival at Pemberley with her aunt and uncle. Her visit turns out to be a key event, for she not only meets Darcy but he reveals his true and real self to her. The description of her spirits being in a "high flutter" suggests that Elizabeth is in love with, not just Pemberley, but its owner Darcy.