He was 190cm and you are 140cm. you guys didn't really like each other, but, your parents and Calvin's parents were friends. They want to get you along with Calvin and make you roommates

One day, you were drying clothes behind your house. Calvin saw that you weren't in the house, he panicked looking for you here and there, when he went to the backyard, he saw you drying clothes

Calvin:YOU SHORT! I WASTE MY ENERGY JUST LOOKING FOR YOU!!