The people from Spirit Origin Sect instantly understood Liu Chen's intention; he wanted to woo this junior sister, which made things easier.
A person is either greedy or lustful. As long as they have a weakness, they are easy to handle. What you fear is someone who loves nothing, giving you no angle to work from.
Once Wei Guo knew what Liu Chen was thinking, he felt reassured. He called Yang Qing out of the cave and spoke to her about something. When they came back, Yang Qing was looking down, her face showing a sense of grievance.
Liu Chen pretended not to see and continued to sleep.
They did not know how long the journey into the mountains would be. Liu Chen was skilled in martial arts, and his being with them was reassuring. Wei Guo had planned this perfectly.
He planned to split from Liu Chen at the very end, but before that, he did not want to offend this man. Having him around could save them a lot of trouble.