I really dont think that just because he admitted to cheating that he will remain faithful from then on...he may he may not it really depends on what he wants....
The man's confession cannot simply be the end of it. I say this as a man who has cheated myself- so long as the couple lets the confession act as "the end of the mistake", he can, and most likely will, cheat again. In order for the relationship to survive, both parties need to gain a full understanding of what happened. What led to the cheating in the first place, and how can they both take steps to insure it won't happen in the future. If both parties are willing to seek therapy to gain a greater understanding of what went wrong, there may be a chance. Just remember, though: a spouse who cheated may not necessarily be just an jerk who thought he could get away with it. In my case, I discovered through my cheating that I am a sex addict with anxiety and depression triggers, and knowledge of my addiction was something that was absolutely exploited by the woman I cheated with. Through both individual and couples therapy, I'm coming to deal with all these issues (and more). I'm still working, and my wife and I realize that maintaining our relationship will be an on-going process through the rest of our lives, but we're closer now than we had been in years, and our relationship is considerably healthier.
Neila222