Bro, sometimes when your wife says she wants a divorce she is trying to express the level of pain she is feeling from what happened. Keep this in mind - you have a 2 year old little girl which means your wife recently went from being a woman to being a mother (I do not think there is a difference, but many women feel that way). That change can make a woman feel less secure. Now you go out and get a number of another woman...that alone is like stabbing her in the heart. I know that alcohol was a factor and all that, but if I were you and assuming you want to be in the relationship, I would go back to her and admit you made a mistake and that you should not have drunk so much. Then spend every bit of energy you have letting her know that she is your everything.

I disagree with the comments above about her unconciously wanting a divorce because I think she is saying that to express how much she was hurt and not because she really wants one. If you were to accept this at face value then it would prove to her (in her mind) that you do not really love her. I am not saying that what she said is just a test, but it would confirm her fears if you did not fight for your relationship. If you can get through this you will come out on the other side with a stronger relationship.

I am not suggesting that what you did was cheating in the common sense of the word, but if you consider cheating breaking your significant others trust, then you did cheat as far as they are concerned. I think she is speaking out of pain and although this is a serious situation and a defining moment in your relationship, I believe it is not what she really wants to have happen.