Because he was willing to stay with her at her lowest point in life, he didn't want her to bear the responsibility of taking care of him at his lowest point in life.
The ambulance arrived quickly.
Before the ambulance reached Ji Yi, He Jichen already left her side and stood behind the same tree from before.
He personally saw the nurse raising Ji Yi up into the ambulance and leaving. Only then did he emerge from behind the tree and hail a cab to follow the ambulance.
Once he was at the hospital, He Jichen also personally saw Ji Yi being taken into a hospital room. After he was sure she was safe and sound, he walked out of the hospital.
He Jichen stood under an old tree and lit a cigarette. After leisurely finishing it, he raised his head to glance up at the room Ji Yi was in before finally putting his cigarette out. He tossed the cigarette butt into the trash can then turned to leave.