I second that- surely there are some people who do not learn their lesson and continue to cheat, but I don't believe that is true in all cases. I can say that, first hand, having been the one to have an affair in the past, that I absolutely will never do it again and am grateful for having been given a second chance with my husband. Even if things do not work out between my husband and I, I will never cheat on anyone again . Hurting my husband, hurting myself, and almost losing my best friend was enough to snap me out of it. And this may be the case for your husband as well- I know he didn't do anything physical, but hurting you the way he did may be what it took to help him realize what he has.

Take care and good luck!