It reveals that she wants a love for the ages. She wants him to prove his love for her by giving up everything willingly without a second thought for her. To just be satisfied being with her rather then having his family and wealth
OMG I LOVE THAT MOVIE/BOOK. A conflict in it was the garden was dead. It was beautiful before but something happened. If I remember right the Lady didn't want the kids going there because they might find some thing out.