Single’s Inferno 3 stars Lee Gwanhee and Yoo Sieun are in a relationship. According to an exclusive report from Sports Chosun, Lee Gwanhee and Yoo Sieun have been dating since December 2025. While the two did not choose each other on the show (Lee Gwanhee picked Choi Hyeseon and Yoo Sieun picked Choi Minwoo), they…
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