Ding Ning had clearly not been in a good mood, otherwise, he would not have gotten drunk. She had not been considerate of how he had been feeling and had said such degrading and insulting things like "Ling Yun was not worthy of him".
Honest to god, Xiao Nuo truly had no intention of looking down on Ling Yun. Her upbringing would also not allow her to view others through biased lenses.
She had just thought of herself as Ding Ning's fiance and had been jealous. She felt that Ling Yun had taken away what belonged to her and it was with such resentful thinking that she had said the word "unworthy". If she had said "should not have" instead, the two of them would not have separated so unhappily.
A random changing of words and things might have developed in a completely different direction
