You are right...I just haven't gotten to that whole OW was a symptom, not a cause point. I believe my H was unhappy...but never with our marriage. He was unhappy with the AF and being stuck, not knowing what he wanted to do next. Or...maybe he also just didn't have the balls to leave without someone else to run to. I guess that is a definite possibility.
I do feel like our M can be stronger though. I think both of us (especially me) will not take things and each other for granted like we (especially me) did before. I know that I will be much more appreciative of the time we spend together.
I definitely do try to encourage him and support him. I think this is something he wasn't used to before he met me...he sure never got it from his parents.