Miley stuart was dating Oliver for 4 years and yet she still haven't told lily at all. " I'm telling u Oliver we should tell lily." miley said. "no we shouldn't miley it'll ruin our friendship with her and she won't forgive us." he said. " me and her are best friends, she'll understand." miley told him. what they didn't know was lily was behind them. "you're cheating on me with my best friend oliver?" miley and oliver both said yes.