Why did Sheng Huainan and Ye Zhanyan break up in "Orange Born in Huainan"?

After Sheng Huainan’s mother found out that her son was in love with Ye Zhanyan, she took the initiative to find Ye Zhanyan and strongly opposed it. She did not want to shame Sheng Huainan and her family again because of Ye Zhanyan and her family.

I don’t know whether it was because of Sheng Huainan’s mother’s obstruction and stimulation, or because he inherited her mother’s mental illness, Ye Zhanyan’s mood began to rise and fall, flickering in and out, and uncertain.

The two were studying in different places, and their contact gradually became less and less, so Ye Zhanyan took the initiative to break up during their freshman year. Sheng Huainan didn't hold back. He thought that since Ye Zhanyan decided to break up, he must have thought it over carefully, and he respected her, so he agreed.

Extended information:

Plot summary

Peking University college student Sheng Huainan accidentally met Luo Zhi, an ordinary girl from the same school. The two hit it off and he was gradually attracted to her. , but a text message from his ex-girlfriend told him that Luo Zhi was the "culprit" who ruined his last relationship.

In the process of tracing the truth, he discovered Luo Zhi's secret love for him. Luo Zhi has been playing a one-man show of secret love in her own world for more than ten years. She has complicated feelings for Sheng Huainan. She is attracted to him because of his excellence, but also desires to surpass him due to some family reasons in the past.

Because of Sheng Huainan, Luo Zhi followed him all the way and was admitted to the best university. Due to various opportunities, Luo Zhi and Sheng Huainan finally got closer. But the growth process and the pressure of reality made the two of them accept many tests.