Finishing this book at 2:00am was not a good idea, or even my idea. I just couldn't put it down. Heck, with tears blurring my eyes & my nose running like a river, I never moved till the last page was turned. So make sure you have at hand a box of Kleenex so you aren't fumbling for a something suitable. 
 Otherwise, I can't tell you anything about this book that might not end up being a spoiler (well, her sister is Treena & her nephew is Thomas). And spoiling this incredible story is not something I am willing to do. I will tentatively put out trigger warnings (view spoiler)[attempted suicide, talk of suicide, alluded to rape (hide spoiler)] so please keep that in mind. This unconventional story (I hesitate to use the word romance) needs to be read, and thought about. A lot. 
 Put your expectations/preconceived notions aside and enjoy this great book for the story it tells.