Norris Moore found it boring.
If Trenton Smith were to cheat, it would be fine. She wasn't the kind of person to cling desperately to him.
If he wanted to break up, she would surely agree without hesitation.
However, given his nature, it's absolutely impossible for him to cheat.
A woman is just a woman; he wouldn't do anything out of line.
He has always been proper when it comes to relationships.
With his status and looks, it's quite normal for him to be pursued by women. He has always been a gentleman, treating all women with warmth and care. He possesses the elegance and romance of a British man, so it's unlikely that he would refuse the attention and proximity of a refined lady.
Furthermore, the other party stays just the right distance away from him.
A not too close, not too distant relationship, filled with ambiguities.
As a result, she lost the grounds to catch him cheating.