Cheating may feel like the ultimate end to a relationship. But according to relationship expert Jenn Mann, this may not be true.She told Insider the bond between couples can actually become stronger after infidelity.But there's a catchthey need the "four Rs of apology" to make it workremorse, taking responsibility, recognition, and remedy."In order for the relationship to be able to heal, the couple has to be able to process what happened, why it happened and how to avoid it in the future," Mann said."When the cheater stays defensive or unwilling to process the hurt he or she has caused, the relationship is unlikely to achieve a positive outcome."Visit Insider's homepage for more stories.When someone cheats, the reasons are always bad. But according to a relationship expert, the act itself may sometimes lead to something gooda stronger partnership.Jenn Mann, the author of "The Relationship Fix," told Insider the main reasons people stray is a lack of connection in the relationship and sexual dissatisfaction."Most people do not realize how important creating, maintaining, and nurturing connection in a relationship is," she said. "There will always be temptations, but when a couple is feeling connected the odds of acting on those temptations go down significantly."But cheating doesn't always mean the end of a relationship, she added. In fact, Mann believes it can even make a bond between a couple stronger. But couples who do survive are the ones who are willing to look at their flaws and the mistakes that led up to the affair."This is painful and difficult to do, especially after being betrayed and hurt so deeply," she said. "A well-trained couples therapist can be very helpful here."But it's not simply a case of forgiving and forgetting. No relationship can move forward unless they have the "four Rs of apology," Mann said."In order for the relationship to be able to heal, the couple has to be able to process what happened, why it happened and how to avoid it in the future," she said. "When the cheater stays defensive or unwilling to process the hurt he or she has caused, the relationship is unlikely to achieve a positive outcome."The four Rs of apology1. RemorseThe first step is a heartfelt apology, Mann said, which is more than a simple "I'm sorry." She said a meaningful apology means communicating real regret and an understanding of the hurt caused.2. Taking responsibilityThis means showing ownership of your actions and the impact, regardless of your intent, Mann said. This lets the other person know you appreciate the gravity of what you did wrong.3. RecognitionEveryone's feelings need to be acknowledged and listened to after something as traumatic as cheating, so it's important there's the opportunity for each partner to talk through what happened and explain how it made them feel.4. RemedyIf you want to make amends, you must take action to avoid another affair, Mann said. This means addressing the underlying issues that led up to the cheating in the first place, like attending therapy or going to rehab.The level of trust in a relationship is "irrevocably changed" after cheating, Mann said, but couples can make it through if they're willing to put in the work it takes to forgive.Overall, connection is the "greatest vaccination" against infidelity, she said, so it's important couples work towards building that up again."There will always be someone who is younger, hotter, thinner, perkier, fitter, or better endowed," she said."But if you are nurturing a sense of connection with your partnerstriving to make them feel loved and adored, and providing something unique that no one else can provide overnight, or provide it the way you doyou have the home court advantage."Read more:A 'get your ex back' website conducted research to find out what really happens to couples who rekindle their romanceA relationship expert says making these common mistakes after a breakup can lead to a negative thought spiral4 steps to getting over a breakup in 30 days or less9 important things to remember to stay strong and love yourself again after a tough break-up14 reasons you're not getting over your exeven if they were totally wrong for youJoin the conversation about this storyNOW WATCH: A 45-year-long study discovered trends in successful hyper-intelligent children Click here to read full news..