That is part of the illness.With many of these BAC's, religion consumes a huge part of their lives, it really is a waste of time that could be spent doing constructive things. Probably why Islamic countries are such backwards arse pits.
With my ex it was just an endless barage of god bollocks all the time,often starting over breakfast. I eventually tried to make a kind of pact where we both had our own beliefs and would respect each others but we would not try to push our beliefs on each other.
It proved to be impossible for her, so that was the end.