Crescendo: Fallen angles falling in love?

I am reading Crescendo. It is the second book in the Hush, Hush series. In this book, it starts out with Patch and Nora watching fireworks. And Nora went to get a hamburger for herself, but she ran into Marcie, they've had a very bad relationship since elementary, and she something about Nora's father hand that made Nora cry, so she went back to patch, and they made out in his car."I unlatched my seat belt and bent across the console, finding Patch's mouth in the darkness. I kissed him slowly, savoring the taste of sea salt on his skin."

When I read this I could feel the passion between them. I could tell that she really cared about Patch on a high level then in the first book.