Huo Ling's eyes widened and his pupils shrank. Who - ?! he thought and sharply turned. Fortunately, Lu Si's and Jonathan's instruction to not speak was engraved in his mind or he would have instinctively spoke his thoughts, which would definitely expose himself once his voice was heard. That one, he is a man. And two, he is the real Huo Ling and he isn't a random woman the 'prince' who is celebrating his 'birthday' tonight have chosen as his female companion.
It seems like the other person, who emerged from the darkness and is slowly walking towards him, doesn't need him to speak, either, since he didn't spoke again after he said those words. He just looked at Huo Ling. Likewise, Huo Ling just looked at him. One standing and is looking down at the one below. Meanwhile, the other one is sitting and is looking up at the one above.