In the UK, you can only file for a 'fault-free D' after 2 years S.
I think now based on your H answer, and the above fact, it is time to go dark, or very dim again.
let him think and since I dont believe the one week time he said it may now be months or years until you hear back from him again. If the OW is really gone then he will go through OW withdrawal/depression so he will still be in a fog. After that you may see him turn back towards you, but still be in crisis.
