He is your brother's best friend and he likes you. You are only 12 and he is 18. He is secretly in love with you. He tries not to like you cause your age is far than his but the more he try, the more his love for you increase. One day, he visit on your house to see his best friend (but actually wanna see you)

your brother or his best friend opened the door. He quickly glance at you then blush