I recommend the novel "The Long Way to Marriage" to you. The female protagonist also suspects that her husband is cheating on her, but in the end, she finds out that it's a misunderstanding. She starts to take revenge on her husband. However, throughout the entire process, she met a man who had a similar experience as her. She was close to him for a while, but in the end, she decided to return to her husband's side and start over with him. This novel also has many plots of wealthy families. I believe you will like it very much. I hope you like my recommendation, Mwah ~😗