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Valentine’s Day often brings with it public displays of affection, but a recent post from NCT’s Haechan has sent fans into a frenzy, sparking renewed speculation about a possible romantic relationship with fellow member Mark. The post, shared on February 14th, featured a series of images predominantly showcasing Mark, accompanied by a caption that has been widely interpreted as a “hard launch” of a relationship. This isn’t the first time the pair, affectionately known as “MarkHyuck” by fans, have been the subject of dating rumors, but the latest development has ignited a new wave of excitement within the K-pop fandom.
The images, posted to Haechan’s official Instagram account (@haechanahceah), depict the two idols seemingly enjoying a casual outing together. What has particularly fueled the speculation is the accompanying caption: “Him and his stalker.” This playful phrasing, combined with the timing on Valentine’s Day, has led many fans to believe Haechan is subtly confirming a romantic connection. The post quickly went viral, with fans sharing screenshots and analyses across social media platforms.
Fans React to the “Hard Launch”
The reaction to Haechan’s post was immediate, and overwhelming. On X (formerly Twitter), the hashtag #MarkHyuck began trending as fans shared their excitement and interpretations of the post. One user posted, “MARK FROM HAECHAN’S INSTAGRAM POST???? literally the first four pics out of six are just mark ohmygod haechan the hard launch???? 😭” accompanied by a screenshot of the images. See the tweet here. Another user wrote, “haechan posting all these pictures of mark on his instagram account and captioned it ‘him and his stalker’…he’s just spelling it out to the world that he’s madly in love.” View the post here. Fans also noted that Mark responded to the post with a like and a comment, further adding to the speculation.
MARK FROM HAECHAN’S INSTAGRAM POST???? literally the first four pics out of six are just mark ohmygod haechan the hard launch???? 😭 pic.twitter.com/aIBfowIMpS
— ⁺⁸² risa 𝜗ৎ 𝗕𝗢𝗧𝗛 𝗦𝗜𝗗𝗘𝗦ᴶᴺᴶᴹ • 🎟️ (@xneojunx) February 15, 2026
haechan posting all these pictures of mark on his instagram account and captioned it “him and his stalker”…he’s just spelling it out to the world that he’s madly in love. pic.twitter.com/Nj5Z4SWrYx
— ْ (@kogumahaechan) February 15, 2026
A History of Playful Interaction
While the Valentine’s Day post has amplified the rumors, the close bond between Mark and Haechan has been well-documented for years. Known affectionately as “MarkHyuck” by their dedicated fanbase, the two members of NCT are frequently seen interacting playfully during variety shows, behind-the-scenes footage, and on social media. This established dynamic has led fans to consistently speculate about a potential romantic connection, though neither artist nor their agency, SM Entertainment, has ever confirmed any such relationship. The playful nature of their interactions has always been interpreted by some as simply a strong friendship, while others see it as a subtle indication of deeper feelings.
No Official Confirmation
As of February 15, 2026, neither Mark nor Haechan, nor SM Entertainment, have issued any official statement addressing the dating rumors. The speculation remains largely fueled by fan interpretations of the Instagram post and the duo’s history of close interaction. It’s essential to note that the term “hard launch,” while popular among social media users to describe a public reveal of a relationship, is not an official designation and relies on subjective interpretation. The NCT members have been busy recently, with NCT 127 preparing to release their upcoming album, “WALK,” which is set to revive aged-school hip-hop influences.
The lack of an official statement leaves the situation open to interpretation, and fans will likely continue to monitor the pair’s social media activity for further clues. It remains to be seen whether this Valentine’s Day post will lead to a formal announcement or remain a playful moment within the ongoing narrative of “MarkHyuck.”
What do you think of Haechan’s post? Share your thoughts in the comments below!