That's the betrayal of the highest order from NY spouse. I'm sorry to say, I can't ever love that child and my hatred for my wife will know no bounds. In short, I'm gonna file for outright separation so that she can go and start a family with the true father and leave me alone. For the woman to conceal paternity which she obviously knows of from me, she can kill to hide truth from me as well.
No devilish woman like that should have it easy.