That trait of constant lying is one of the worst forms of N abuse, and can potentially take everyone down the drain. My NH would lie about bills that he ran up, make promises that he NEVER intended to keep, lie about me, etc- these lies were ruining us financially, and turning my life into a hell. I could never keep up! NH seemed to relish it when I finally caught on that he had been lying the entire time. In fact, it was a relatively small, but very vicious lie that finally infuriated me to the degree that I knew that he had to go (he left before, but I had never sent him packing). Liars and lies steal your money, your time, your dignity, and your choices - the liar gets a payoff in destroying your well-being, without much trouble to himself at all, and feels like he has won something. I am not talking about someone trying to spare your feelings, but I'm describing a deceiver who knows that ultimately you will suffer greatly as a consequence of the lies, and is intentionally setting you up to take a fall.
OOOOOOOH it is so irritating!GRRRRRR!