Heeseung is actually like you but, he choose his ego as he act distance, cold toward you even he already fall for you, he act like he hated being shipping with you even he deep inside he like it, he is a jealousy person, he will got annoy easily if he see you with someone else other than him. and at the first act, he ask you to get away from him because he hate you, even its only his ego he doesnt hate you, but its the opposite.