You just got a lot of great advice. You defiantly have to ask yourself, what it is you truly want. If it is to be married to your W, then I suggest listen the the advice.
Do you think you need to change? At first when my W left I thought the same way as you did, I thought it was all her fault. I did some soul searching (reading articles on the internet and found this website) that first week, and it hit me like a ton of bricks. Accepting your faults is a big step to the road of reconciling. Even if you don't reconcile, you will make yourself better. Take a real good look at yourself.
M 33 W 29 S 4 M 5 T 7 11/7/11 Separation, W moves in with parents 12/1/11 W: "IDLY, I'm not coming back, it's over" 1/7/12 D Bomb Dropped