Various masaail of Nikaah

Going to non-Muslim countries

Q: I was told that if you and your spouse are in a non-Muslim /Dar ul Harb country and you go to Dar ul Islam (or vice versa) for a visit, your Nikaah is terminated. Is this true? Would it apply e.g. if the husband goes on vacation to Egypt, leaving his wife behind in South Africa for a few weeks?

Wife taking her share from the husbands money

Q: My friend and her husband are in their 60s. Children all married. They had a big house both of them owned because both worked hard to buy that house and they lived in this house for a long time Alhamdulillah. Now her husband retired and he sold the house and they now travel or live with their children one by one. He kept all that money in a secret account. She did not get anything. She wants to know can she take little by little from him without telling him? If she ask he won't allow her. But if she takes it without telling him he will never find out. Is this ok to take her share little by little without telling him. Please respond.