Even though she was studying a million miles away, Yong Woo doesn't like the hold she had on his friend. She still has control over his emotions all the way from there.
One word from her is sufficient to gauge his friend's emotions, at least, until her next word.
Yong Woo is not personally resentful of her; rather, he finds her influence on his close friend to be too much.
He observed that his friend would usually be in a bad mood if he didn't receive any texts from her during the day. But then he would become all excited once he received her texts in the evening.
Now that he thinks about it, Byeongho was a bit sulky and in a foul mood before their trip here. Could it be that the two had planned to have this vacation together and she had cancelled at the last minute?
Is that why his friend too had almost cancelled the trip, had it not been him?
