On April 9, 2025, YouTuber Lee Jin-ho made headlines with his video titled Shocking Exclusive! The Truth About the Late Kim Sae-ron’s Ex-boyfriend… The Truth About Kim Soo-hyun’s 6-Year Relationship! In this 12-minute upload, despite being legally restricted from discussing Kim Sae-ron, he delves into the intricate details regarding her and fellow actor Kim Soo-hyun.
In his video, Lee challenges the assertions made by the Garosero Research Institute, which claimed that Kim Soo-hyun and Kim Sae-ron shared a six-year romantic relationship. He expressed that his motivation for airing these facts was to unveil what he referred to as “conclusive evidence.”The video can be viewed here.
Exploring Kim Soo-hyun’s Relationship Timeline
According to Lee, Kim Soo-hyun was involved in a committed relationship with another individual from 2016 until 2019, a relationship that persisted even during his military service. This part of his life was reportedly known to those close to him.
“It is understood that Kim Soo-hyun had a romantic partner from 2016 until the end of his military service in 2019. It was a long-term relationship that lasted for about three years,”Lee stated (quoted via Ranking News).
He elaborated further:
“Kim Soo-hyun was discharged from the military on July 1, 2019. He broke up with his girlfriend of about 3 years toward the end of his military service.”
Lee asserted that Kim Soo-hyun’s relationship with Kim Sae-ron unfolded much later, specifically between the summer of 2019 and fall of 2020, thereby suggesting that there was no overlap between the two relationships. He pointed out that Kim Sae-ron also had a romantic partner during this period.
“Kim Soo-hyun revealed that he dated Kim Sae-ron from the summer of 2019 to the fall of 2020. Then why wasn’t he two-timing her? It’s because Kim Sae-ron also had a lover she was seeing during this time.”
According to Lee, Kim Sae-ron’s brief visit to Kim Soo-hyun’s family during his military break featured just a casual meal, indicating their connection wasn’t as intimate as portrayed. Lee emphasized that both individuals were aware of each other’s separate romantic commitments at the time.
“They were only close enough that Kim Sae-ron visited the house where Kim Soo-hyun’s family lived during his long vacation and ordered delivery food. At the time, Kim Sae-ron also knew that Kim Soo-hyun had a long-term lover.”
In addition, Lee referenced Kim Sae-ron’s past relationships, showcasing a blurry video from May 27, 2019, which supposedly showed her holding hands with another individual. He claimed this footage was shared amongst staff members at her agency.
Lee also disputed a photograph previously identified by Garosero as dating back to 2016, asserting that digital evidence confirmed it was actually taken in 2019, thereby calling into question the alleged timeline of events. He promised viewers more revelations in the future, indicating an ongoing commitment to sharing more details.
Kim Sae-ron’s Unveiling: A Troubling Letter
Before her untimely passing, Kim Sae-ron reportedly composed a heartfelt letter to her husband, referred to as A, revealing deep emotional struggles and hints of suicidal contemplation. This letter surfaced shortly after her ex-boyfriend, known as K, shared private messages exchanged with her shortly before her death.
In a statement, Kim Sae-ron’s alleged husband released the handwritten note, which illuminated the reasons behind their abrupt marriage and subsequent separation. The two-page document expressed her feelings of tension and despair, ultimately questioning whether a slower approach might have altered the course of their relationship.
“‘Our short and intense relationship ended like this. I loved it even through that overwhelming feeling, but if we had gotten to know each other a little more slowly and had spent more time together before deciding to get married, would it have ended so easily? It wouldn’t have,'”Kim Sae-ron penned (quoted via Ranking News).
Reportedly, Kim Sae-ron entered into a marriage with a man based in New York in November 2024, following a brief courtship, but later reestablished contact with K. She confided in him regarding her troubling experiences, alleging that her marriage involved emotional and physical abuse.
K publicly revealed messages that showcased Kim Sae-ron’s growing apprehension toward her husband, detailing accusations of monitoring and verbal abuse. Tragically, Kim Sae-ron reportedly faced multiple instances of self-harm during and after her marriage.
On March 31, 2025, Kim Soo-hyun held a press conference addressing the claims surrounding him and confirmed his cooperation with ongoing investigations, as the matter continued to unfold.