It seems the two men left by Ba Lang are rather difficult to deal with, refusing all of her threats and bribes, determined to wait until Ba Lang returns.
At the restaurant, Sikong Ling seemed to have anticipated that Su Wenyue would be moved by compassion to save someone, so he did not leave. Consequently, he witnessed everything that transpired below with his own eyes, as clearly as Su Wenyue had previously watched that man dealing with the government soldiers. From his vantage point, everything was plainly visible.
At this moment, Su Wenyue was trapped by Ba Lang's men, and Sikong Ling saw it all. Even though he knew Han Yu had secretly dispatched men to protect Su Wenyue, Sikong Ling still felt uneasy. For instance, when the man earlier took Su Wenyue hostage, the clandestine protectors failed to intervene promptly. Although the situation had evolved quite suddenly, from Sikong Ling's standpoint, it was an unacceptable dereliction of duty.