I thought the same thing but when it happens and you still love your spouse....throw in kids....then it all changes. My first wife cheated I took her back, recovered, had another kid and she did it again. Does that make me weak...maybe but I wanted a intact family not a divorced one that I had. I wanted 100% time with my kids not every other weekends. In my case we both were in the military and whoever didn't get primary custody would only see the kids 30 days out of the year...unless we were both based at the same base or state. We divorced anyways but when she was at her final base before retirement.