talking about timeline. i’d to share with you the timeline of XY & TSJ’s reunion:
XY had been brought to Jade Mountain by CX for some days (i don’t remember exactly but CX was allowed to stay in Jade Mountain no more than 3 days)
Day 1: that day XL came to Jade Mountain in the afternoon. Then had talk and drink with Sir Bi. At midnight he got up and went to the lake to fed XY his heart essential blood to rescue her. subsequently he killed the poison bugs (using 2 of his lives) and erased the memory in the Ape Mirror. The whole process finished by the sunrise the next day. then he left before destroying the shell.
Day 2: XL woke up in the morning. Then she met Royal Queen and accepted to become the next Royal Queen. The official ceremony would be held in 3 days
Therefore, day 5, is the coronation ceremony. In the middle of this, Jing interrupted the ceremony. XY then declined to become Royal Queen. From their talk right after that failed ceremony, Jing said he had just woke up on an island with a merfolk couple in the morning of 5 days ago. That means he had gotten up the same day as XL came to Jade Mountain (one in the morning, one in the afternoon).We can guess that XL left for Jade Mountain just after doing something to wake Jing up.
Keep in mind, he had given the blood jade stone ,which was made of XY’s blood and his spiritual power, to a merfolk one year earlier. Did he have to do similar drastic method to assure Jing’s waking up from coma.
after waking up, Jing went to Shen Nong Mountain and was informed that XY was in Jade Mountain. He immediately departed and just arrived on time to interrupt the ceremony.
We can see how timing XL orchestrated the serial rescue event: saving Jing, then XY and incidentally stopping XY becoming royal queen which , preventing her from loneliness for the rest of her life.