Everything is so confusing in this story, I can't keep up.

Weiyun died cuz he chases Yutong, Yutong dive back in time into the past, he met Weiyun then they slowly build their relationship until Yutong falls for him too, they got together until the car accident happens again, Yutong wants to prevent Weiyun's death so he has developed trauma, they successfully prevent Weiyun's death then Yutong goes back to present, Yutong feels strong cuz Weiyun is saved, then Weiyun wakes up from coma