Buddhists and other Eastern religions say -- though I don't know if they succeed -- that external events don't determine our thoughts, we do. To achieve that, they use meditation, breathing exercises, and a spiritual world view to minimize the effect life's troubles have on us. For anxiety sufferers, our anxiety is irrational, and therefore harder to do this, but the principle is the same -- to now worry, don't worry. To learn how to do that, find someone who teaches a way not to do that. I know it's not that simple to do, but if there's a cure for thinking anxious thoughts that's it. You also have to consider the other person's views in a less contentious manner -- he may have good reasons for his feelings, even if you don't and never will agree. Having compassion for how he feels even if you don't do what he wants might take some of the suffering out of it.