*** NOTE: The following is only an idiot's opinion!!!! ***
Your boyfriend is guilty of independent thinking.
You are being blamed for the doubts he is starting to realize in his own mind by the elders. Soon you will be public enemy #1 in his own mind, if he takes these superstitions seriously. (You can't compete with one's perceived creator.)
I wish you the best of luck, as your lives together are already being compromized, IMO. Those witnesses are playing on guilt and his natural fear of death just as a catholic or a protestant plays on guilt and fear of eternal burning.
I'm sure others will be willing to offer some helpful advice for you if you are really "hung up" on your "lover". If I were in YOUR shoes though, I would *LEAVE* as it will save you and him BOTH the trouble.
Just my .025 cents/pents worth.