That's because you still care about him. When people pay too much attention to emotions, they sometimes have a negative psychology. That is, what they subconsciously think is something they don't want to happen, so sometimes they become dreams when they sleep.
As for the metaphysical explanation, I don't think you need to care. After all, there is a saying that man can conquer nature. It's true to think about how to do it well. Travel with friends, or relax with your husband.