You dont want to start a pattern of hugging him when he is in this fragile state of reconnection. If you are busy or you forget, this can cause him to feel rejected.
And a show of affection should come from a feeling that you have at the time.
It is important during this time, to let him know you are there, but, continue to let him figure stuff out. You might see a few steps forward and then one back at times. All part of the process.
Those are all positive things, my friend.
This is a tricky time for him. He has to reconcile whatever brought him into the tunnel, his life during MLC and the life he wants in the future. Tough stuff, that.
You need to dig in again here. Patience, tenderness and validation are important during this time as is continuing to let him set the pace and giving him space to figure himself out.