"I did see him." Qin Xue did not lie. She had indeed seen him, and not only that, she had shared an intimate moment with him. She didn't realize she could be so amorous, engaging in such tenderness with her husband in such a short amount of time.
"No wonder I was wondering why Zakeer was with the man. Turns out it was you who asked him to follow. That's not a bad idea." Xue Ling was surprised when she saw Zakeer today, but now that Qin Xue had mentioned it, things made sense.
There wasn't anything difficult to explain. Chu Molin had come, but not with Qin Xue. Either he was trailing them and didn't want Qin Xue to know, or he was on a mission and couldn't meet Qin Xue. Either explanation made sense.
However, given Chu Molin's character, it was impossible for him to stalk Qin Xue. So, the only other option was that he was here for a mission.
Having Zakeer follow him could simply mean that Zakeer was familiar with the area and was guiding him to their target.