You have 3 options; Keep the kid, and stay involved. Any self-respecting man would stay by his own blood, regardless if it was a mistake or not. You can run away from the second kid, and try and pursue something with your shambling family, and try and fix that, but you'll be labeled a coward. Or, you can leave your wife, stay in contact with you son, and go back to the "smoking hot chick" and raise that child because you OBVIOUSLY didn't love your wife enough to stay loyal, or she didn't satisfy you enough to keep you held down, and thus, a relationship between you two will start to fall apart anyway. Have fun with your options. You won't find help from me. I did the same thing. I stayed by my kids, though.