Responses

some people only exist in one's love life to fill their time of loneliness and inexperience until one's actual true love comes, hence why break-ups happen. I think dong hyuk exists in Kyung-soo, and Yule's love life to further better the relationship of yule and Kyung-soo. call it fate? But it's only my viewpoint on this.
YES!! DONG HYUK U IDIOT! YESSS! CONTINUE TO CREATE THE PERFECT MOMENT FOR YULE TO REDEEM HIM SELF AND MAKE KYUNG-SOO HATE YOU!! ε=ε=(ノ≧∇≦)ノ SO HE CAN LIVE HAPPILY EVER AFTER WITH YULE! (if yule doesn't die while redeeming himself) and p.s i never liked dong hyuk, he seemed like one of those "calm breeze before the storm" type of person and that's exactly what happened.