Hannah Louise Plimmer 
Like a Diamond in the Sky [EPUB ebook] 

When you are young, life is simple. Or at least it’s supposed to be. Girl meets boy, they fall head over heels in love and they plan to live happily ever after. See? Simple.For Lucas and Cecelia, it isn’t quite that easy. They have the falling in love bit down, but they learn far too young that you aren’t always guaranteed the happily ever after.