(FILES) Karina (2nd R) and other members of South Korean girl group Aespa attend the red carpet at the Mnet Asian Music Awards (MAMA) in Seoul on December 11, 2021. Accused of "betraying" fans, subject to relentless online and real-world public abuse, K-pop star Karina recently issued a grovelling, hand-written apology. Her crime? Dating a South Korean actor. (Photo by ANTHONY WALLACE / AFP) / To go with 'SKOREA-MUSIC-ENTERTAINMENT, FOCUS' by Claire LEE (Photo by ANTHONY WALLACE/AFP via Getty Images)