Please recommend a novel where the male protagonist almost kills the female protagonist.

The male protagonist used to practice martial arts and wanted to show it to the female protagonist. However, he accidentally cut the female protagonist's neck, so the male protagonist cut his own wrist.
There was once when I was going to give a gift to the female protagonist, I accidentally pushed her into the lake and almost drowned.
Later, the male lead seemed to have gone crazy, but he still treated the female lead well.
It's a relatively short novel
Help me think about it
The female lead seemed to be a medical student, and the main characters were senior and junior siblings.

Once, the male protagonist felt that the female protagonist was a little distant from him and could not find the reason. Later, he found out that it was because the female protagonist saw him accidentally killing a bad person.
However, the misunderstanding was resolved later.
The ending is He

Answer 1

"Rebirth: Every Confession Killed" might meet your requirements! After Ye Heqing was reborn, she realized that as long as she confessed to Zhu Heng, she would be attacked. She was very depressed. This book is a modern romance novel about entertainment stars. It might suit your taste. I hope you like this fairy's recommendation. Muah ~😗