The both of you were childhood friends, making your friendship as comfortable as anything. Though despite your personalities being the complete opposite. Oikawa was always talkative and confident while you were quiet and cold

Though the both of you still got along

Despite you hating the feeling of getting touch or talk to, Oikawa was an exception. You always letted him do what he wants, him always clinging into you every time. While you just ignore him and let him do what he wants