After Ji Yuan had finished recounting his trip in the legendary Secret Oracle Gate to Ding Jie'Er and how he had met the Great Oracle of Delphi, she was astonished.
Naturally he had lied about the third challenge to her and had merely told her that the Goddess Ai Tina was gracious not to kill him but decided to give him a chance to ask a question from the Great Oracle of Delphi.
Also, he had hidden several things from her like his suspicions on the Spiritas Tower and the Greater Spirit Realm as he did not want to Little Jie'Er to have any undue anxiety. After all, this was only his suspicions and it may not be the whole truth.
Also, he felt uneasy about exposing the Goddess Ai Tina especially when he had realized that she and Xu Yifei are actually related.
Ding Jie'Er was suddenly quiet and she seemed to be pondering over something.