Prove it!

"How did you know that lady?" Secretary Chu remebered to ask Yang Lei the next morning as they drove towards the hospital again. Last night, Secretary Chu and Yang Lei were returning from an ocassion when the former received a call that his brother was in the hospital so they had driven down there first. Apparently, his brother had gotten into a fight with his supposed fiancee Meimei and the girl just had to show how crazy she was by throwing a flower vase at him which caused a deep cut in his arm. He knew for sure that the marriage wasn't going to hold again because his brother wouldn't be so stupid to marry a woman like that who was fond of fighting violently at least, every week. 

They also had a meeting to attend outside of town later and Yang Lei had suggested he stopped by the hospital to visit his brother on their way out of town.