Please recommend a romance novel to me. I've been looking for it for a long time, but I can't find it. Can you help me?

The story went like this: The male protagonist went to a bar once and saw the female protagonist dancing there. He was attracted. However, he didn't know anything about her, and she disappeared. At that time, the male lead had a fiancée. It seemed that his parents had arranged it for him. He had no feelings for her. However, this fiancée liked him very much. In order to test whether the male lead liked her or not, this fiancée canceled the engagement and quickly got married to another man. The male lead did not take it seriously at all. He was thinking about the woman in the bar. He did not expect that the person he was thinking about was right beside him. She used to be his secretary. She usually wore black-rimmed glasses, her long hair was made into an ugly bag, and her clothes were very tacky. Later on, he discovered…He would go after her…It was as if they were enemies…