Jaehyun's Graduation

J call me S. I call him J. We've been friends for so long, we used to talked a lot on the phone before we sleep. It's been 4 years we became rarely to talk and never meet again since J became trainee at the biggest company, SCEnt, in Korea.
One day, J text me, he asked me to come to his graduation.
But I haven't decided yet, should I come or?
ps; I'm going to tell you a secret (J always refused the fact that I'm older than him)