This is one of the moments where I wish that Goodreads allowed us to give incremental stars, because this book is really closer to a 3.5 than a hard 3. Beautifully written and such an engrossing narrative. This story shows us all the ways in which we justify decisions that can have profound negative impacts on other people. I thought the characters were all very realistically rendered - Tom especially was just so heartbreaking to me. 
 My one big problem with the book was the characterization of Isabel. On the one hand, I understand her motivations and early on could sympathize with her desire to keep Lucy. However, as the story went on, I found her much more difficult to empathize with. Yes, she was a victim here, but so was Tom, and Hannah especially. And yet, I didn't really believe that she saw it as that. She was busy playing the victim, wallowing in how she'd been wronged, without real self-reflection as to her own role in her or anyone else's misery. 
 On the whole, I enjoyed the story and the characters. I just think that a bit more of a character arc or more insight into the character of Isabel would've strengthened the book quiet a bit. Still, over all, definitely worth reading.