Lee Jin Wook revealed the real reason to why he was hesitant about marriage.

On the 13th episode of tvn 'I Need Romance Season 2' that aired on August 1st, Yoon Suk Hyun revealed the real reason of why he was skeptical of marriage.

On this episode, Kang Na Hyun received a phone call from Yoon Suk Hyun's mother, when he was away. His mother told Na Hyun that his sister passed away, leaving her shocked.

Suk Hyun's sister suffered from the same incurable disease that his father had. In the past, after Suk Hyun's sister fainted and was admitted into a hospital, he asked his mother, "Is it the same illness that my father had? It's the same symptoms as my father. Is it hereditary?"

Suk Hyun stated, "Ki Hyun will probably die like this. Why did you have children? Why did you have me and Ki Hyun?" and showed his resentment.

Yoon Suk Hyun said to his ex-girlfriend Joo Yul Mae, "I don't plan on getting married. Why do you really need children? Do you really need children?" and showed his negative thoughts on marriage and having children.

Joo Yul Mae resentfully broke up with him thinking that he was an irresponsible boyfriend that dated her for 12 years and stating "I won't get married." But it was because Yoon Suk Hyun saw that his father and sister suffered from the same illness and did not have a positive view on marriage and having children.

Viewers stated, "Yoon Suk Hyun has a sad story," "It's a story that brings tears," "I think I know why he really didn't like marriage," "Wouldn't Joo Yul Mae come back after knowing this?" "I can understand his thoughts that his children might be sick like his sister."