What a disgusting moron to write that to his wife.
Utterly. He's getting a kick from being cruel and controlling.
Done intentionally and with malice.
Exactly. That's why I said at the time, back when the messages between him and Dijana became public (around pages 912-914), that he was showing hatred towards her. He would obviously outwardly disagree with that word, but you don't display that level of contempt and emotionally cruelty to someone you really love.
It's sadly no surprise though. It seems that all his adult life (and possibly even before that), his relationships with others have been about manipulation and control, so it would be unlikely that his most intimate relationship - with his wife and the mother of his children - would be any different.
He will find it difficult to make any lasting new intimate relationship now, though. Not only is the cat out of the bag publicly online about his past conduct, but he's too old and set in his ways to change now, and where he might once have had 'youth' and a degree of 'status' (being a rising young man in the JWs), he's got nothing like that to draw any impressionable young woman into his web now. He can try by losing weight, getting fitter, bleaching his hair (ahem) and flexing his musical and comedic 'talents' (double ahem), but that won't get him very far!