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He shuts the door because he is WITHDRAWN.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.