Hi aussie and welcome to the board,
I hate to say it, but you will never win over the watchtower. In my opinion, find someone that will devote himself to you, and not to a bunch of senile old men that change their minds as often as they change thier diapers.
I totally agree with stealth on this.
Really it isn't worth the pain and agony.
Check out other posts about other non JW women being with JW men, your heart may be wanting to be with him but you will always feel unhappy with the way he is wiith the JW.
IMO break it off you will have a better life.
Helen