Drama is called Darısı Başımıza
Plot:
Zerrin is an amazing and caring mother. She has two daughters - Ryuya and Oikyu, and one son - Serkan. Zerrin dreams of only one thing - to see the wedding of his children. However, they are in no hurry to create a family. Ruyya is in love with the actor and does not notice anyone, Serkan is a real sissy, he does not leave the house. But Oikyu lived abroad and was about to marry, but when she found out about his betrayal, she left him. As a result of a misunderstanding, Oikyu meets Ozan, young people fall in love with each other, decide to get married. But everything is not so simple - it turns out that there is an old feud between their parents
Intro/First episode scene:
After finding out betrayal FL goes to the random hotel. She behaves suspiciously, all crying, goes to the roof. ML follows her. She goes to the edge. He thinks she is suicidal. He saves her. Plot twist - she only wanted to throw away an engagement ring and she was not suicidal at all.
https://youtu.be/fYHIj7lzPfM?t=1335
I really remember this scene and similar setup in Korean drama (small probability it was Chinese/Taiwan).