Eternal Joy with You

Both dramas revolve around revenge of a weak wife scorned by her husband.
Both FL were first indeed in love with their bad husbands.
Both FL have a child and several plot points are about this child.
Both ML are cold and the FL appears cold too due to her revenge plans.

If you like the two main actors together, and they indeed have good chemistry, you can try their first collaboration. Not the same vibe though. Love and bid farewell is a highly toxic relationship.

Similarities:
- Both fl's protect their son's and save them
- Both fl's get betrayed by their first husband's
- Both seek revenge on those that have wronged them
- Both first husband's get similiar punishments for wronging them
- Both Chinese Dramas

Differences:
- In The Maid, the fl gets a new identity
- In Eternal Joy with You, the fl has a second chance at life
- In The Maid, the fl had to live a different life for years, and come back to get vengeance
- In Eternal Joy with You, she had knowledge of her past and just restarted freshly