There was an article just this year that basically said any troubles in an "unequally yoked" marriage is their own fault. My JW hubby, when he has asked for advice, was told it was his bed, go lie in it. A witness's attitude in a mixed marriage is to be both quietly miserable and patient in the extreme, in order to win over the recalcitrant spouse "without a word". As the years have gone by and it has become clear that I am not an easy mark, the Witness's greetings at the hall are ever more forced.
If you haven't done so yet, read the chapter on mixed marriages in the "Secret of Family Happiness" book.
I've countered this stupidity by successfully counselling my husband not to count on the elders for advice. We rely on each other.