After spending a few days with Tang Song, Mo Ran worked hard at playing the role of his girlfriend, but she realized she still couldn't immerse herself in it.
She thought Tang Song was unaware of her inner thoughts, not realizing that he had long seen through them.
People in love are often more sensitive. Mo Ran was too polite in his presence, and too good to him, which led him to guess that her actions were deliberate.
If she truly liked him and saw herself as his girlfriend, she would be particularly dependent on him, and wouldn't be so overly polite.
However, Tang Song didn't say anything. He knew Mo Ran needed time to grow affection for him, and he was willing to wait. He believed that after a month, Mo Ran would start to like him.
Even the slightest bit of affection would mean he wouldn't let go of her.