When Xinlu said he liked someone who would stay with him for a long time, in the novel, it was Yuri who pictured Taeui, thinking that Xinlu was referring to Taeui. However, Xinlu seemed to catch Yuri's train of thoughts, and immediately wanted to tell him that he was not thinking of Taeui, but stopped himself because he himself didn't know who he would think of if not Taeui.
When Xinlu said he liked someone who would stay with him for a long time, in the novel, it was Yuri who pictured Taeui, thinking that Xinlu was referring to Taeui. However, Xinlu seemed to catch Yuri's train of thoughts, and immediately wanted to tell him that he was not thinking of Taeui, but stopped himself because he himself didn't know who he would think of if not Taeui.
We finally see Xinlu's slow process of moving on!