However, I will admit out of the three my favorite book was As Long as You Love Me (Book #2) starring Rob & Lauren just because I thought their story was a little more compelling than the other two couples. Also, I just really enjoyed them in general. I felt like by the second book, the author definitely had a firm grasp on who the characters were and developed their world a little better.
I gave I Want It That Way 4 stars, As Long as You Love Me, 5 stars (told you I loved it) and The Shape of My Heart 3 stars (mostly, because while I liked Max & Courtney, I wasn't too crazy about them as characters.)
Also, fair warning: As you can probably tell, these are named after Backstreet Boys songs and if you were a fan, you will probably feel really nostalgic. I found myself later watching old music videos on YouTube before my son caught me and asked what I was doing.