I know the affair - and public humiliation would bother me tremendously. It would be a while before I could show my face in public and take "pity-stares", etc. Looking at newspapers, news and weekly trash tabloids would take all of my courage.
A baby? Something to forever remind me of what happened? Last straw! Not the child's fault at all - she did not ask to be born, but I know that would be what finally ended it.
Also - I realize that many of the men that commit adultery (and women do, as well)do it for their own gratification and it is not really a reflection on their spouse.........but it would still kill me inside.
If I had cancer - like Elizabeth Edwards - ??? I may change my mind then if I were scared enough and that would literally be hell on earth.
If I were healthy - it would be good riddance!
As much as I hate what happened, I do have to admit, if he is serious about being a real father to the child, then good for him for finally "manning up".