You have any number of reasons to blame for why you did what you did. You literally have no-one to blame but yourself if you don't reach out and explain to him what was happening to give him the chance to understand and forgive you for what was out of your control. Don't be that person that disappears a whole possibility of their life through anxiety and fear. Grasp that hope that he'll understand and even if he doesn't, it will be because he doesn't want to rather than because he doesn't know.