Where does this quote come from?

Rating: 10/10 (4 March 2006)

I didn't notice it in the movie, and its certainly not in the book! Can anyone tell me? Lost... Jacs "Mr. Darcy: ...And what am I to call you when I'm cross? Mrs. Darcy? Elizabeth Bennet: No, you may only call me Mrs. Darcy when you're completely, perfectly and incandescently happy. Mr. Darcy: And how are you this evening, Mrs. Darcy? (kisses Elizabeth's forehead) Mr. Darcy: ...Mrs. Darcy... (kisses her cheek) Mr. Darcy: ...Mrs. Darcy... (kisses her nose) Mr. Darcy: ...Mrs. Darcy... (kisses her other cheek) Mr. Darcy: ...Mrs... (his voice, a whisper, fades out, and he draws Elizabeth closer to him as she leans in and he kisses her"