Hi, Theres this movie that i watched when i was a kid on TV that i still kinda fondly remember but i do not know any names or details about it. I believe its a hongkong movie from around 70s, 80s or 90s.

The plot revolves around this 4 high school student who is coming of age, and graduating from highschool and onward to a working adult life. So, there is this Nerdy girl that likes this rather Bad boy while this other Nerdy boy likes this Bad girl. However, neither recipients reciprocates this feelings and mocked them for it. Feeling dejected and onward to adult life, the 2 depressed nerdy kids somehow met each other and teamed up together to sabotaged their rejectors.

Its some kind of a Comedy, Drama, romance movie
Would really appreciate if someone could help me on this.
Cheers