Luke is your ex who's currently your step brother, things were very awkward between you two and your past came to haunt you again. Just looking at his face hurts you, both of you broke up after a huge misunderstanding. You went to his home but you couldn't find him there, you went to his room and found a gift with letter that say For my darling but you didn't gift him anything, you thought he was cheating and broke up with him, he was mad at himself because he didn't have a chance to explain.