Things Have Gotten Worse Since We Last Spoke

I'm trying to think of the right words to write a review for this book but I seem to be coming up with a blank because... how do I explain this?

I went into this with no knowledge of the book whatsoever so I was definitely taken aback by what occurs in the story and I can full-heartedly confirm that I did not predict what was going to happen... At all.

However, I do feel that had the interactions between the two main characters been paced slower, this would've had more impact and the meaning that the author was trying to portray behind the story would've come across more profoundly.

This was a head spin of a read!