I'm sorry.
I'm in the opposite position. My, 22 year old daughter, is shunning me. She hasn't spoken to me fore 3 years... because I'm evil.
Our loved ones are able to disconnect from us because they are trained to believe they are doing God's will. It's no different from trainer your child to kill himself and others with a homicide bomb.
Faith is very powerful and destructive.
I miss my daughter so much. She was married and told me not to show up (her last letter to me).
I still have two of her email addresses and I send her pics and a small note about life here. I don't know if she gets them, but I hope so. Could you do that? Nothing negative. Just a not with a pic;tell him what's going on in your life. Nothing long. He's the one who has cut the relationship, not you. Keep yourself in the front of his mind. Write a not as if you are not hurting and sad. Just a "Hey, I just cut my hair. What do you think. Love you." This is the way I handle it. If she is getting my emails, at least, she knows I'm thinking of her.
Best,
Bryan
Have You Seen My Mother