Your guy bestfriend is named "Ryan" which is a fake name for him to hide his true identity as a royal prince.

One day, you we're sitting on the passenger's sit in his car while "Ryan" is driving. You then starts to complain about the prince on their island which is him but you still didn't know his true identity. He just listens to you while driving as he finds it amusing to hear. He chuckled and speaks

"Oh yeah? And what did he do?"