Karina and her actor boyfriend Lee Jae-wook rocked the K-pop world after they publicly announced their relationship in February, accused of "betrayal" by some of Karina's angry fans. 

Lee's agency, C-JeS Studio, confirmed the breakup, saying Lee wanted to "focus on movie projects". It added that the duo "will continue to support each other as colleagues."

Karina promised to "heal the wounds" she inflicted on angry fans. "I apologize for shocking you so much," the singer, whose real name is Yu Ji-min, wrote. She promised to show her fans a "more mature and hardworking side" in the future.

When news of the union first broke, some fans started a protest against the management agency, saying, "Isn't the love of the fans enough for you?" 

Incident words from Courtney Love to Taylor Swift! Incident words from Courtney Love to Taylor Swift!