Hearing Lina's words, Ling Tianya remembered the relationship between Lina and Cheng Chen. Cheng Chen once told her that his first love was a lot older than him. Also, Cheng Chen frequently said that, if the child of his first love was still with them, she would be about the same age as Ling Tianya.
Ling Tianya wanted to confirm that Lina was Cheng Chen's first love. If she truly was, perhaps their relationship could take a step further. After all, they both knew Cheng Chen.
However, after a moment of thought, Ling Tianya decided that it was their business. It wouldn't be appropriate for her to ask Lina such a rude question. Also, considering that Cheng Chen was such a wild and free soul, Lina might have been hurt when their relationship ended. If Ling Tianya asked about it, Lina might not be happy with her.
Therefore, Ling Tianya decided to let the topic drop.