Has nothing to with pride. I admitted to her that I was totally at fault and just wanted forgiveness and a chance to show her that it would never happen again.
I posted this to angel recently, and I think it applies to you.
Let's pretend that you beat a dog every day for 10 years. (And note - I am NOT saying that you are or were beating your wife) Then the dog runs away. You think, "hmmm, that was wrong of me to hit the dog so much." You find it and say "Im sorry, dog. It's my fault. It will never happen again."
Do you think the dog is going to come back with you right away?
Of course not. It will take a long time of repeated actions to prove that you mean what you say.
Same concept applies here. You cant just say "I was wrong. Lets try one more time." It doesnt work that way. You need to become the person you want to be and repeatedly show your W the new person that you are.
But until you put in the work, make the changes, be the new you....theres no reason that she will believe you.