That is a really tough situation. How long did the couple know each other before marriage? Just because dating is haram doesn't mean people shouldn't get to know each other---and each other's families---before marriage. Did the sister have absolutely no idea that her future husband would have these tendencies? If he really refuses to open his mind to true Islam then I think the sister should seek a divorce. She should be VERY careful about consulting clergy; many of them will agree with the husband and his ritualism. She should also, sorry to be so frank, be sure to use birth control until she and her husband have truly reconciled--if that's possible. The husband also sounds like an absolute chauvinist against reverts and non-Arabic speakers. (I wonder if he knows Qureshi Arabic?!) Does he think "born Muslims" always surpass reverts in knowledge? He really needs to read QXP and Dr. Shabbir's other books. But will he be open-minded enough to accept their knowledge?