Their next face-to-face encounter was always going to be awkward, but it's unlikely that IU and Eunhyuk expected it to happen on camera.
The pair were reunited at the 2012 SBS Gayo Daejun: The Color of K-pop special, with co-host IU forced to stand behind her one-time Super Junior boyfriend during a live interview with Miss A's Suzy.
During the chat, Eunhyuk casually answered questions without acknowledging his former lovebird. However, all eyes were on IU, 19, who looked tense and self-conscious as she tried to hide behind co-host Jung Gyu Woon.
Reps for both stars refused to comment on the encounter, however an SBS insider tells IdolWow!: "This was not a surprise to either party. They had seen the scripts, so they knew it was going to happen."
It's been two months since their brief love affair was outed after a photo of the two was accidentally uploaded to IU's Twitter account. In the personal snap, the "You & I" singer could be seen laying close to a shirtless Eunhyuk, 26.
At the time, a LOEN Entertainment rep denied a relationship, claiming that the Super Junior star had merely visited a sick IU in the summer. But sources later confirmed to media outlets that they had briefly enjoyed a fling.
The 2012 SBS Gayo Daejun: The Color of K-pop, a 270-minute New Year’s broadcast special, featured a host of big music names including Girls Generation, BIGBANG, 2NE1, f(x), SHINee, B2ST, TVXQ and many more.