draco malfoy was going through depression and suffered from ptsd after the war. when y/n kept insisting he needed help, which he kept refusing as he denied he was hurting, draco smased some things and told her out of anger that he doesnt love her anymore. he said it almost instantly. he didnt open up about anything, just simply told her "I dont think i love you anymore". so they break up. his expression never gave him away that he didnt love her because in his angry mind, he didnt anymore. in a few days, they grafuate out of hogwarts. cut to there. and they lose contact with each other qn never tqlk at all. they dont even see each other ever. draco's ego makes him believe for a few months that he really doesnt like her anymore; cut to a few months later. as time passes the empty spaces where y/n should be makes his heart ache. he realises he said it out of anger and still loved her. but it was too late. they had already graduated hogwarts and she no longer came at malfoy manor. so, for y/n's sake, he goes to a mind healer and fixes himself. the details of his therapy sessions must be included as different scenes.