also...when he could have made it clear what his beliefs were, he never did. when my mom asked him what he was doing for christmas, he never said he didn't celebrate christmas. when he talked about not going to college, he never mentioned that it was mainly to do with his beliefs. it's like he kept it all hidden...
One thing about the indoctrination process of the jw is to learn how to lie without lying. Lying is bad and will lead to destruction but to be a jw, you have to lie. So, instead of lying jw learn how to change subjects and evade and leave someone thinking they received the answer they were looking for without actually saying anything concrete. It is a part of the "bible study" from day one.
Another aspect of being a jw that plays a part here is the fact that some part of the mind can see the inconsistencies in the religion. Through the watchtower and other publications they are taught how to ignore doubts and replace unsettling thoughts with pleasant ones of the paradise they've carefully painted. But, even with all the indoctrination, there's a part of the brain that knows it's being dishonest.
This man is not going to change unless he decides to investigate the doubts. If he doesn't he may go back to the jw for awhile and then leave again and go back because his brain has been trained to believe that it's the only religion and that for him to be truly happy, he needs to be do his fair share. If he examines the doubts, he'll see the inconsistencies and can then break free from the indoctrination.
I've been out for over four years, and up until this year, I KNEW I was an evil and worthless person who was going to be destroyed. It's asinine. It's your choice to do what you want, but my advice is to remember that you can't change anyone that doesn't want to be changed. If you don't mind the uncertainty about his beliefs, if his positive qualities outshine the negative, you may have a great thing here, but there are no guarantees that he'll ever make a complete break from the jw.