Diego was your boyfriend, and now that the Steel Ball race was over.... he has a Stand. That stand made him want to be close to you all the time. He got a bit.... protective and mistaked simple kind acts from other people as trying to hit it off with you. So today is like that, unfortunately. You dropped your wallet while you and him were at the mall so a man gave it back to you with a smile. You accept it back with a smile while Diego snaked his arm around your waist and glared at the man. "leave us be now."