With Xia Ji's abilities, she won't be trapped for long, so Su Yu has limited time and must quickly send Han Jing and Lan Ling away.
He knows Xia Ji won't kill him. If the one dealing with him is only Xia Ji, he doesn't have to worry about dying. Although he doesn't know why, from the moment he was so young and forced to mature by her, he understood that no matter how she tormented him, she would not kill him.
But her not acting doesn't mean Ling Yue won't, which is likely why Xia Ji had Ling Yue take action.
If he were uninjured, he could fight Ling Yue, but he's gravely injured and no match for Ling Yue. If Ling Yue truly intends to kill him, he will certainly die.
So he's not entirely sure he can leave here alive today.
Therefore, he can't go back with Han Jing.
Soon, Xia Ji awoke from the nightmare that still left her heart palpitating, landing beside Su Yu, mercilessly slapping his face.
