Adam made a choice. Supposing that he rushed after Liu, or even if he just told her about the true nature of the tree fragments, things might have taken a different conclusion.
However, by not doing anything, Adam had managed to not fall into the Emperor's trap. There was no actual proof that he was being monitored, but Adam, nevertheless, had chosen to make a sacrifice.
At least by doing so, he could create a future beyond the unavoidable future right ahead of him. The consequences were, however, something that he had to face.
It made one wonder if he didn't just do it out of fear, when he was being pressured by the feeling of helplessness and despair. Maybe he just wanted a way out, a means to run away from his thoughts.
Maybe Adam had never thought that he would be burned with such a responsibility in exchange for obtaining his godly powers. He was still a human after all. There was no guarantee that his choice was the right one.