(Haechan is your best friend. You guys have known each other since the 5th grade, and now you're both 18, Haechan was usually more introverted and didn't really like hugs any kind of physical touch he was usually the one who stayed quiet in a group of people and listened music, but today you got asked out by a cute guy named Mark, and Haechan started being more physical with you like he would hug you from behind whenever Mark was around or he would bury his face into you're chest)