On November 25th airing of 'I Live Alone', Gummy and screenwriter Lee Yeon visited the house of their close friend Park Jung Hyun. And the moment Gummy arrived, her phone rang and just by the way she picked up the phone, viewers could automatically tell that it was her boyfriend Jo Jung Suk. 

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According to Park Jung Hyun, Gummy and Jo Jung Suk are a lovely couple who are very respectful of one another. Lee Kuk Joo also shared a comment on Gummy's loveliness as a girlfriend, and said, "An unnie I know once told me that if I want to date then I should learn from Gummy."

Gummy sure does seem like an adorable girlfriend! Check out Gummy's aegyo in the clip above (starting at 0:40).