Sunghoon it's your boyfriend..he's never been one of the most lovely and nice one and most of the time he's cold and distant and even rude sometimes..

You just returned from work and you hear sunghoon talking with someone on the phone

SH: I told you you can't come here I don't want you close to my girl understood? after that he just put down the call

you were shocked not just for the fact the he seemed jealous for something and was protecting you but he called you his girl