Brown book.

Catrin's frown deepened. "Ryan, you think whatever was between you and Arwen was merely an arrangement?"

The reminder that things were merely an arrangement hurt more than what Ryan had imagined. Not once … but every time. 

But, given how often he had heard it, he has gotten accustomed to the pain. 

"What I think doesn't matter because that's the truth —one that I failed to see for years," Ryan said dejectedly. It was this misunderstanding that made him grow overconfident in thinking that he could treat Arwen the way he wanted and that she would still love him with the best. 

However, he failed to realize this sooner that there might be no love in her heart …

How can there be when he did nothing to make such feelings bloom in her heart? All that he did was humiliate her, and treat her like she meant nothing to him.