Turns out what was going on was an interesting article about the SCREENwriter of those books.
Here are a few quotes:
The third one [Eclipse] was hard. Actually, the hardest one of the three for me to write.It’s not a long article, but has some stuff you might want to read whether you’re a screenwriter or an author who hopes to have a movie made of your book.
From the very beginning with Twilight, that’s what Stephenie’s one thing was: "Do the book. Adapt the book. Don’t use the book as a jumping-off place ...."
The biggest challenge is the Bella/Edward, because you’re always writing a line between real intimacy and what’s true versus overly maudlin or melodrama. True romance and true drama — that’s always the line.