It's really a pity that such acts still exist. It's not the fault of any but a marriage isnt between only the couples but also between families. In Ghana, it's quite uncommon for such occurrences as inter tribal marriages do exist harmoniously. But my advice to anyone in such a situation is to love his or her spouse with the love of God and forget about the families. Not to say neglect them, but if they don't want to see your wife, don't let them see her. Make sure your spouse is well fed off