Bangkok Rak Stories: Kon Mee Sanae (2017)

both have a wealthy male lead who is about to marry. the male lead has a girlfriend that is spiteful and very good at manipulating him. the female lead tries to make him see what she is really like but fails multiple times. it's not until the female lead is driven away that the male lead actually sees her for who she is.

The main actor in the series was sick due to accident and require personal helper to assist on the recovery. Then love story with the personal helper start to blossom.