Hoverlab, a South Korean news commentary site on YouTube, claimed that the actor and the late actress Kim Sae-ron had been in a six-year relationship since she was 15 years old.

According to the actor's agency's statement, Kim Sae-ron was 19 at the start of the relationship and Kim Soo-hyun was 31.

Gold Medalist released detailed statements about the ongoing controversy involding Kim Soo-Hyun and Kim Sae-Ron. It addressed their dating scandal and accusations that the actor and his agency were forcing her to pay them back the amount that they lent her to compensate for the losses during her DUI case.