You aren't doing anything wrong but he clearly needs some room. You have no idea what is going through his mind. Maybe he feels he is close to drinking again? Which he will never tell you btw. Go by his actions. He is telling you something loud and clear. Stop texting, calling etc. He will talk to you again but i read your post and I even felt the pressue you were placing on him
Deeeeep breath. OH and don't do that texting for answers thing. Id wait until you can talk to him on the phone or in person. There is way too much ambiguity in texting, too much room for misinterpretation. But definately focus on yourself and let him sort it out.