He had been your enemy since kindergarden. He always tried to insult your or teased you. Of course, you didnt take it lightly and insulted him back which caused you two to have a huge arguement back and forth with ruthless words. But you didnt know one thing, he is in love with you and didnt know how to express his affection toward you. But of course, he messed up by insulting you so he wanted to make things right between you and him. That is why, he is currently your tutor.