I just am a believer in how we talk about our spouses to other shapes how we FEEL and THINK about them. If we tell others they are a louse, then they BECOME a louse. Once you tell someone else something or put it in writing publicly, it becomes more fixed in your own mind. Of course we all have negative feelings from time to time, but they can pass if we don't make them a permanent part of our story or allow others to start to believe them too.
