All About Lee Kwang Soo’s Girlfriend & Their 8-Year-Long Relationship

If you’ve spent any time watching Korean variety shows over the past decade, Lee Kwang Soo is a name that probably makes you smile or laugh out loud. The actor and entertainer earned the affectionate nickname “Prince of Korea” for his long-running popularity on Running Man and his easy, self-deprecating charm. 

Off camera, though, Kwang Soo’s love life has quietly captured fans’ hearts: his long-term relationship with actress Lee Sun-bin has been one of K-entertainment’s sweetest slow-burn romances. 

But let me walk you through who Lee Kwang Soo and Lee Sun-bin are, how they met, the timeline of their romance, what the public has said about them, and whether marriage is on the cards with sources so you can read more. 

(I’ll admit I’m a little bit of a softie for celebrity couples who age like fine kimchi: the longer they stay together, the more I root for them.) 

Who Is Lee Kwang Soo?

For those who don’t know, Lee Kwang Soo (born 1985) rose from modeling into mainstream fame through his comedic persona on variety television, most famously as a permanent cast member (till he left) of SBS’s Running Man from its early seasons. 

Over the years, he broadened his profile with acting roles in dramas and films, becoming known for a lanky, clumsy charm that made him an audience favorite across Asia. 

His public image blends witty self-mockery with sincerity. And trust me when I say this, that mix has helped him win legions of fans who still follow his career and personal life closely. 

Lee Kwang Soo Girlfriend: What You Need To Know About Lee Sun Bin

Lee Sun-bin (born 1994) is an actress and former trainee who gradually established herself through supporting and lead roles in films and dramas. 

Fans admire her for her easy screen presence and versatility from action movies to slice-of-life comedy-dramas. This is the reason why she has become a familiar face in Korean entertainment in her own right. 

“Before she started her acting debut, she filmed multiples endorsements, commercials, and made appearances in music videos such as “Goodbye 20” (2013) by Lim Kim, “Almost” [하마터면] (2013) by Amy, “Nabiya” [나비야] (2013) by Wu-Tan, and more. She won the “2017 Best New Actress” by MBC Drama Awards for her work in Missing 9,” according to My Drama List. 

Beyond acting, Sun-bin’s cool, slightly mischievous public persona blends nicely with Kwang Soo’s goofiness, which is part of why fans found their pairing so endearing. 

Everything You Need To Know About Lee Kwang Soo And Girlfriend Lee Sun Bin’s Dating Life!

It was December 2018 when Soompi broke the news of Kwang Soo dating Lee Sun Bin. According to the media platform, Kwang Soo’s agency King Kong confirmed their relationship by stating: 

“Lee Kwang Soo and Lee Sun Bin have been dating for five months. After meeting on ‘Running Man,’ the two eventually became lovers, and they are currently accompanying each other to gatherings and introducing each other as their significant others.” 

After that, Sun Bin’s agency, Imagine Asia, also confirmed their relationship to the media, according to KPop Herald. 

How Did Lee Kwang Soo Meet His Girlfriend?

The actors became friends after shooting the episode on Running Man, where they met for the first time in 2016. About five months back, they started dating. They were pretty affectionate with each other around friends, even before telling the media they were a couple. 

Since then, the pair have kept things relatively low-key. They stick to sharing a few public moments and showing mutual support at industry events. However, they generally let their work and small glimpses into their life together speak for them. 

Besides, multiple Korean media outlets have described the relationship as steady and affectionate, and in 2025 media coverage referred to their romance as an eight-year relationship in the making, reflecting both their early friendship and years together in the public eye. 

Lee Kwang Soo And Lee Sun Bin’s Dating Timeline

Here’s a quick look at their dating timeline:

• 2016: First meeting (on set): The two first crossed paths professionally through Running Man and related industry circles. That initial meeting set the stage for a later friendship. 
• 2018: Public confirmation: On December 31, 2018, Korean entertainment outlets reported that Lee Kwang Soo and Lee Sun-bin were dating; reports indicated they had been seeing each other for several months, and their agencies confirmed the relationship. That is typically treated as the official public starting point. 
• 2019–2024: Low-profile, supportive couple: Over the years, the pair avoided dramatic PDA or constant tabloid exposure. Instead, they chose occasional public support (e.g., attending each other’s events or being mentioned fondly on variety shows). Fans appreciated the mature, drama-free nature of their relationship. 
• 2025: Media check-ins and talk of the “8-year” romance: In 2025, interviews and variety appearances saw Lee Sun-bin and Lee Kwang Soo talk more candidly about their relationship. Moreover, the Korean outlets described the couple as having an eight-year history together — a sign of both longevity and comfort between them. Recent remarks from Sun-bin about what keeps them close also fueled renewed interest in the couple’s future. 

Public Reaction & Media Coverage

Unlike what happens in most cases where fans react in a rather negative manner, things were different in the case of Soo-Bin couple. Fans have been largely supportive of the couple after they got to know about their relationship. Which is why Koreaboo even went on to call them as a “fan-favorite TV Star couple.” 

Recently, both of them opened up about their intimacy and closeness, hinting at how they have been doing great as a pair (*touchwood*)! 

Celebs like Yoo Jae Suk and Ji Seok Jin have even invited Kwang Soo and Sun Bin respectively as guests on their YouTube channel where they spoke openly about their relationship. 

 For instance, Seok Jin reminded Sun Bin of how she called Kwang Soo her “ideal type” and she agreed. On the other hand, Jae Suk (who kept saying that he was the one who made tehor relationship happen), also mentioned how happy they were as a couple! 

Are Lee Kwang Soo And Lee Sun Bin Getting Married?

As of now, no matter how much I want it to happen, no matter how much fans want it to happen, they are not getting married. At least not right now. However, given the fact that they really have been dating for a rather long time, they do wish to get married when the time is right. 

All we can do is hope that this couple sticks through like they always have! Until then, we can scroll through the internet and watch their couple moments on YouTube and smile!