I've been tagged

I've been tagged and I feel embarrassed about the book I just finished. I've heard so many different views from family and friends about the book (or at least the series) but I finally read it and I don't think I have the same view as anyone.

Okay here's the rules to the tag:
1. Pick up the nearest book (of at least 123 pages).
2. Open the book to page 123.
3. Find the fifth sentence.
4. Post the next five sentences.
5. Tag five people.

The book is ...well...I don't know if I'll tell you the title. Maybe you can guess the book if you've read it.

The 5th sentence and the next five sentences are:
Jacob wasn't smiling. His dark eyes were critical of my reaction. "It's a little bit more powerful than that. More absolute."

"Sorry," I muttered. "You're serious, aren't you?"

(and now I'm adding a few more sentences because I can)

"Yeah, I am."

"Love at first sight? But more powerful?" My voice still sounded dubious, and he could hear that.

Okay, who shall I pick to tag?
1. Chelsi
2. Mindy
3. Andrea
4. Laura
5. Tiffani

Have fun with this!! I did...and did anyone guess the book? (except you my walking partner...you know what book it is since it's yours).