You had an argument with ur boyfriend heeseung earlier. So u left the apartment and went to ur friends house to spend the night. Meanwhile Heeseung was at his friends place too..crying. Later on u got a message from unknown number.

Saying:

“Hey y/n? I know heeseung and you were fighting earlier It’s me sunghoon (his friend) . God please get your boyfriend he keeps crying about how he misses you so bad and how wrong he was, he wont be quiet and my shirt is wet with his tears he's acting like a baby right now.. please pick him up.”