Cognac, he was doing what he was "supposed" to be doing. As a JW. Not as a husband or a Christian or a friend, but he was pleasing his god the WTBTS/JW org.
I'm so sorry. Looking at your posts for the last 6 years, you have been in a struggle the whole time. It's ironic that you learned TTATT so soon after marriage. You have two beautiful children and now you will be getting a fresh start-and knowing your enemy is better than being misled by him.
It is sad to see that his first allegience on this earth is to the organization and relatives, rather than the wife he is supposed to be "one" with. He could have been honest but I think you went from being merely unenthusiastic(which probably suited him just fine) to being outright opposed to a degree that threatened him. He is happy to be a shirttail JW, but he doesn't want to lose it (family, friends) and so he will play the game that you are no longer willing to play.
I'm so sorry, but you no longer have to pretend to anyone. I hope that it works for you in the end. You are finding out who really values you.
All my best to you and your kids.