This is just my opinion of course, but I think what you're doing is sort of selfish. Maybe you should focus on what your wife wants...have you even asked her? You're not in the position to be making requests of her. You've not only cheated on her once, you did it twice! If I were in your wife's shoes, I wouldn't be jumping up to give you a third chance.

Respect what she wants, let her have her life, and try to move on.