A process for stopping behavior or building new behavior can be very important to make progress toward your goals. This is also very true for dealing with dishonest behavior. If you are lying to your spouse and having trouble stopping this type of behavior, then you probably need to sit down and work through a process to change your actions. The process I lay out here is not in order, but can be used as a template to find what works for you. Dishonesty is disastrous to relationships and needs to change. Take what you can from this session and start trying to figure out your process to have better reactions and stop fibbing and start telling the truth.