I’m feeling worried, because what he did meant so much to me and shaped me as a person and I wanted to at least thank him and tell him how much that meant to me and how I still think of him decades later. He was single, broke up after a short relationship years ago, had no job, and I don’t know if it’s just how his face looked, but in his latest picture from 3 years ago, his eyes looked empty :(
If he didn’t read your message, he likely didn’t read messages from others. If his account is gone, it sounds like he deleted it like so many people are getting fed up with social media.