You must completely end the adulterous affair. This other person must be plainly told that the relationship is over. If possible, ask for forgiveness (preferably on a conference call with your spouse or pastor on the line) for your selfishness and deceit. There can be no continuing communication (no secret rendezvous, telephone calls, cards, letters, or e-mails). The other person should be emphatically told not to contact you anymore. You must be willing to amputate from your life anything that will tempt you to reopen this [relationship]… Don’t keep any mementos, photographs, keepsakes, or other memorabilia that might tempt you to spend time thinking about (and fueling romantic feelings for) the other person. You may have to change your telephone number, your e-mail address, or the route you take to and from the office… [Now you will have to take the] money, time, thoughts, dreams, affection, initiative, and creative energies [that you spent on] the other person…[and reinvest them] with your spouse.
Lou Priolo