I find the NARCISSIST factor is by far the most pressing issue here with the JW thing a distant second.. As mentioned JW Facts lays it bare for all to see so yes.
Sunnybear please look into Narcissism, this guy checks each and EVERY single box, 100% USER . Sex is great but also gets old real quick with someone you're not in love with. He's using you for his own pleasure and what he does love about you is your booty not you as a person. Remember he and his beloved organisation are on the take. Take, TAke, TAKe and TAKE !
https://sarateller.com/narcissistic-traits-checklist/
Girl you are in for a world of hurt with this guy, sorry.
Bottom line if he loves you and you are as important as he says then the religion aspect would only be a simple detail to work around and compromise on. It's sure isn't going that way is it ?