I don't think they said that in the actual book, but i remember it in the movie.
Edward tells Bella that she is his life now in "Twilight" on page 221.
In order for Twilight * Page 274 (Edward says it) * Page 314 (Bella says it) * Page 366 (Edward says it in many words) * Page 418 (Edward and Bella) * Page 456 (Edward says it) * Page 479 (Edward and Bella) * Page 498 (Bella says it)
The first time Edward says i love you directly to Bella is in Twilight page 319
Edward catches the apple on page 18 of "Twilight."
Chapter 17: The Game. Page 366.
P. 319 of Twilight.
page 306 line 3
It was page 250, the first page of chapter 14, "Mind Over Matter"
They talk in page 43 and Bella sees Edward in the cafeteria on page 22
On page 432 of "Twilight" Bella Swan writes a letter to Edward Cullen.
like 2 times on each page :)
Yes, many times. She first says "...i was in love with him' (him meaning edward) in Twilight on page 195. She first said 'i love you' to Edward in Twilight on page 314.