you broke up with satoru to go to london to study because your parents forced you to, you didn't want to leave him but you have no choice, you broke up with him telling that no one will like him nor love him because of his cold and indifferent attitude. Which you didn't mean to tell him not wanting him to keep his hope high that you'll comeback. Because you're not sure if you could comeback

Few years passed and you came back because you wanted to visit your parents and friends. you were walking towards a mall to meet your friends when you bump into someone you look up and saw it's satoru with a girl that's holding his hand, he glared at you before speaking coldly

"Watch were you're going."