On this week's episode of SBS 'Running Man,' Song Ji Hyo was spotted betraying her 'Monday Couple' partner Gary, leaving him stranded to hitchhike his way towards Yeoju rest stop.

While Gary was out of the car, Song Ji Hyo receives a call from Haha and Ji Suk Jin, the kings of betrayal, telling her to leave Gary behind at the rest stop. To make things more exciting, and in hopes of possibly winning more prizes, Song Ji Hyo willingly locked the doors to the car and drove off as Gary attempted to run beside the car.

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Finally, Gary was left behind at the rest stop, forcing him to hitchhike his way to Yeoju rest stop. He complained to the generous citizen, "Song Ji Hyo betrayed me and left. I can't believe I was betrayed like this. I don't even have money right now."

Check out Song Ji Hyo and Gary's short-lived romance in this week's airing of 'Running Man' above!�