First, I should mention that oops, I read this one first instead of the one before it so I think I technically know what's coming for the couple before this one. I should have read closer!
As for the book itself, not bad, not bad. It has a decent plot but there are holes in it. Tons of them, really, when it comes down to the history between these two and the buildup to a sudden total and complete meltdown. Like, I was expecting something completely different because of how things were twisting, not to mention that I'm a little weirded out by the idea that someone can just tell that they're hitting a virgin's hymen with his fingers? Does that mean this guy has had the experience multiple times, enough to know what he's doing? It's just an odd fact.
Not to mention that I'm sincerely ticked off at the waaaaay too easily forgiven mode here. He's spent four years tormenting her, bullying her, and even if each time he pulled something there was a "reason" for it, HE HAS STILL SPENT FOUR YEARS MAKING HER LIFE HELL. There's no way that it would be so easily forgiven.
It's the unrealistic side of that aspect that makes the story lose a star, because the rest of it is pretty well thought out, especially for a shorter story that tries to cram all the details in while in only so many words/chapters.