First, the role is fictional by the screenwriter.
I believe the audience familiar with history knows that in real life, Chen Yannian has no emotional experience. In the awakening era, the feelings of Chen Yannian and Liu Mei appeared. The acquaintance between Liu Mei and Chen Yannian was very accidental. At that time, Chen Yannian and Chen Qiaonian were trying to promote the release of New Youth, but Liu Mei's subsequent actions made Chen Yannian feel insulted. However, they are strangers. Later, after Chen Yannian went to Beijing, Liu Mei followed Chen Yannian and sent a touching emotional story. But unlike reality, Chen Yannian had no emotional experience, and he devoted his whole body and mind to China's revolutionary cause.
Second, improve the popularity of TV dramas.
For historical dramas, boring ways are often inevitable, which will make some audience friends feel bored. However, in this drama, the screenwriter fictionalized the role of Liu Mei, which also added a lot of visibility to the TV series. In the TV series The Awakening Age, Liu Mei is very lively and lovely. Although this role is fictional, Liu Mei's brave pursuit of ideals and love has touched many audiences.
Third, Liu Mei's role has been sublimated.
In the play, Liu Mei appears as a rich girl, but this rich girl is neither arrogant nor impetuous, and is willing to join Chen Yannian in the revolutionary cause of China. She gave up her rich material life. At this level, the role of Liu Mei has been sublimated to a certain extent, which makes the audience like this role more.