Nicolas has the whole tortured hero thing going for him, but I didn't like him all that much at first. I understand that he first assumed that Hannah was really out to get him, but his reaction was a bit extreme. I did like them together, but it seemed a little unbelievable at first, since it hadn't been that long ago that Nicolas was threatening Hannah with a knife.
Hannah goes to Nicolas' home hoping to find out where her brother is, but her brother ended up being less important then I expected. Spoiler, he does so up. Most of this book is about Hannah and Nicolas falling in love, but I'm not sure I really believed it. I know there's some time we don't see, but it seemed too fast. This is a novella rather than a full novel, so that's not really surprising.