I recommend " Time Fades, I Care About You ". The male lead, Ye Haolang, and his girlfriend, Xue Zifan, were childhood sweethearts. When they were in high school, they warned some of their classmates not to fall in love. When he was in university, Ye Haolang ran an e-commerce company and had a relationship with a university teacher. This novel is more realistic. I recommend it to you. I hope you will like it!😉