1x28 - Love Revolution

Joo-young starts receiving text messages from his ex-girlfriend Bo-kyung, unknowing of her ulterior motives. As he gets worried that Ja-rim will know about it and misunderstand him, Joo-young runs into Bo-kyung while he is with Ja-rim. Soon, he notices that Ja-rim is not getting angry with him and has started to treat him nicely.