Trust Your Instinct
It is quite likely that your partner could have these behaviors and not be having an extra marital affair. What may be a warning sign in one relationship may be nothing to be concerned about in another relationship.
As we wrote in the article on ways to spot a cheating spouse, we can say that non verbal clues to lying can be quite difficult to spot and will change from individual to individual. The bottom line: If you think your spouse is lying, ask questions and ask for clarification if necessary. Trust your own intuition or that funny feeling you may feel inside.