It's a Korean manhwa. Where the girl images and exposes herself. I remember a construction guy that has self control. But basically she sleeps with lots of people.
There is also a male version, who was also her best friend.
Is it this?
Female MC: https://www.mangago.me/read-manga/temptress/
Male MC: https://www.mangago.me/read-manga/tempters/
Why do I feel like Korean authors hate their mothers? 70% of the manhwas I read, they either kill the mother's or make her a villian. But, father's, ? No matter how much of a scumbag, they will be forgiven. This manhwa too is infuriating for me. Atleast the first 10 ch, couldn't go beyond it.