"Activity One and Activity Three, immense life risks... with his current abilities, is there a possibility that he could feel threatened by Yuzao Haomei?"
She's just an ordinary, pretty high school girl, albeit a bit materialistic.
On the contrary, there's Jiutiao Meijie, capable of killing him and indifferent to human life, and he wasn't warned of any life danger when getting back together with her.
Dubian Che didn't understand women, nor did he understand love, and didn't know whether this activity had anything to do with a woman's psychology or love, but he had an intuition: the life risk must definitely be coming from Jiutiao Meijie.
He simply couldn't take any risks with this activity.
If it were just his life, he might risk it, but he had parents. No one could guarantee that Jiutiao Meijie wouldn't take her anger out on them.
Ensuring that his parents could live a life that was not wealthy but at least safe and healthy was what he should do.
