I disagree but never say never. He is still like a teenager. He wants his privacy. He shuts the door because he is WITHDRAWN. I understand that part totally. He doesn't want anyone bothering him. Like I said he, could go backwards but I think he could also go forwards.
I agree with BA about being vigilant, until he is done with his crisis but I don't think you should press him. What will that accomplish? If he leaves then you will find out soon enough.