In "A Gentleman's Dignity," Kim Jung Nan asks Lee Jong Hyuk for a divorce, leaving him devastated.

On the 18th episode of the SBS drama "A Gentleman's Dignity" that aired on July 22nd, Park Min Sook asked Lee Jung Rok for a divorce.

After Park Min Sook saw some evidence in Lee Jung Rok's car she was suspected he was having an affair. Lee Jung Rok was doing Im Me Ah Ri a favor by bringing Im Tae San her luggage. He tried to explain this to his wife but she didn't believe him. After she heard it from Im Me Ah Ri, she realized her excessive assumptions.

Park Min Sook stated, "I really can't. Let's divorce" and shed tears. Lee Jung Rok responded, "You always say let's divorce. If you're embarrassed, you should say you're embarrassed. What's with saying let's get a divorce."

During this episode, Lee Jung Rok was trying to help Im Tae San and Choi Yoon's relationship and was unable to answer his wife's calls, which made her worry again.

Park Min Sook said to Lee Jung Rok, "I feel like a crazy woman constantly assuming you're cheating. I'm begging, let me go. Please divorce me. At least let me go when I'm sane." After realizing she's serious, Jung Rok was devastated.