C1940 1899 what is cause and what is fruit?

"Relax, the rest of my life is for her good. Weirdo Ruan, you haven't seen her for so long, how have you been?!" Lan Ze suddenly stopped joking around and said seriously.

Ruan Suixin's heart suddenly felt pain: "Not good, not good at all!"

Lan Ze, "..." It was all of a sudden.

Ruan Suixin almost could not hold it in anymore, but he forcibly held it in as he said, "Haha