Any dramas where the Male Lead has double standards? Like, he may treat others one way but the female lead another?  He only treats the female lead differently. For example: Lighter & Princess.

These are a pretty sure fit:
Love Equations
You're Beautiful
Cinderella and the Four Knights
Dine With Love

These fall under that description, but may be to a softer degree than you are looking for:
Devil Beside You
Shanai Marriage Honey
Falling Into Your Smile
Love O2O The Movie
A Business Proposal

 AthenaTheStorierX:

These are a pretty sure fit:
Love Equations
You're Beautiful
Cinderella and the Four Knights
Dine With Love

These fall under that description, but may be to a softer degree than you are looking for:
Devil Beside You
Shanai Marriage Honey
Falling Into Your Smile
Love O2O The Movie
A Business Proposal

Thankyou!!