Marriage.com said on
You cannot stop an affair in the marriage. It is up to your partner (or you if you are the guilty party) to recognize that the affair will cause enormous heartbreak for all those connected with your family. If your spouse is cheating, you do have ownership in how you respond to the infidelity. Counseling, healthy nutrition, and exercise are simple things that can help you work through the anxiety associated with marital infidelity. Surrounding yourself with a cadre of supportive friends, relatives, and professionals is an important measure as well. Encourage your partner to talk about the infidelity. If he or she is open to conversation, marital healing is possible.
Hallward said on
Confront your spouse and call upon friends and loved ones who will help hold your spouse accountable. Ask your spouse to remove the circumstance and person that led him to cheat from his/her life. Seek reconciliation and counseling. You cannot control your spouse, but you can give them a chance to repent if you would like to save your marriage.