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The couple argued over a dress shirt that Hong Jin Young supposedly prepared as a gift to another man. She asked her onscreen husband to try on the shirt to check the size. 

Though Nam Goong Min expected her to give him the shirt, he soon found out that wasn't the case and threw a fit. He eventually tried it on, but he wouldn't stop asking who the shirt was for. Hong Jin Young apparently found it hilarious as she kept insisting the gift was for someone else.

She said during her solo interview, "I passed by and thought the shirt would look great on Nam Goong Min, so I bought it." When he found out that it was for him, Nam Goong Min stated, "From now on at all the press conferences, I'm going to say, 'Hong Jin Young is the best. I only have Hong Jin Young.'"