Ju Je-gen

Well, first off, the characters. Hee Sung, Kim Dan, Joo Jae Kyung, and your friend Yuri (from ddlk, feel free to replace it with any other name, I couldn't think of one).

You and Ju Jae Gen have a marriage of convenience, and at the very beginning you swore to be a decent wife. You forgave him everything, the betrayals and the beatings.

You were talking to a friend and she asked you:

"What's the point of your marriage? Do you really love him?" You thought long and hard about your answer, then said with a smile , "He's strong, smart, and handsome, and he really loves himself. Someone keeps calling him at night, poor thing, every day in this room. And it's my own fault for my bruises."

A little later, you found out he was cheating on you with your doctor, Kim Dan, and Hee Sung had recently appeared in his head. One of the most popular actors, Jae Kyung, beat him up for harassing Kim Dan. He'd never defended you like that before.

You're tired of being a proper wife, so you've decided to ruin his career and start supporting him. Kim Dan will leave, because Jae Kyung is paying him big money. Think of a plan.