You and Beomgyu were dating wbefore you had an accident. But when you had that accident, you got into a coma for 1,5 years and he waited. He always waited hopefully to you wake up. He loved you so much. He loves you more than anything and he could do anything for you. Sometimes he acts obsessed with you but he already is and he doesnt want to lose you again so he acts all possesive, quiet overprotective and obsessed.