My primary issue with this isn't the acting, though the male lead is either terribly written or terribly acted, but because of the biggest issue with this series. Unable to decide if it wants to be a revenge romance, a soap or a romantic comedy, it fails on all, and worst of all, because of the total acceptance of the way the male lead abuses the female lead. There is isolation, there is forced dependency, there is gaslighting at every larger emotional expression from the female lead. It's so clear that you can see the entire cycle of abuse, abandonment/hatred and love bombing. It's disgusting. She is already a woman abused. I kept hoping she'd eventually realise that he's terrible and leave, but nothing seems to imply that she will, from the set up to the character "development".
If you have experienced abuse, are ignorant of abuse depictions in media, or don't want to feed yourself toxic garbage, don't waste your time.