I don't think he'll be back. He's probably realised that arguing against all the logic that has been presented to him is futile and is now starting to feel a bit silly. After all, at one point he suggested that he was starting to doubt his faith so rather than have that sort of turmoil caused by the first onset of free thinking he took the easy way out and left.
And yes, all his posts seemed to revolve around him.
And yes, all his posts seemed to revolve around him.