There's alot in there I agree with, I went through the same stage with my girlfriend, was doing things on webcam she didn't appreciate. I do love her, I told her the truth, she decided it was time we moved on. We seperated for abit and are now back together. I had time to think about what I wanted and what I didn't want. Perhaps this is what you need.
I agree on telling your wife the truth, this is the woman you said your vows with, I'm sure being faithful to each other would have popped up in there somewhere. As everyone else has said it seems you got married for the wrong reasons. If you get married to someone you get married because your love surpasses everthing else, including temptation. You have cheated, you should tell her. Explain indepth why you have done this, if she cannot handle being with you then so be it.
Why are you cheating? Is it that you are getting bored with the 'flavour' as you have put the synonym. But how are you having the flavour? In a plain ice cream cone? There's many many different ways to dress ice cream, and even more ways that sex can come about, perhaps you need to start exploring more.
I still agree whole heatedly that you need to tell your wife, if the guilt (if you're feeling any) doesn't eventually get to you, then she might find out another way. There are many ways to do this, but I personally would just say that you would like her to sit down so that you can talk, perhaps tell her this is going to hurt alot, ask her to prepare herself for what you are about to say then start from the beginning. Just don't make excuses and answer any questions that she's got if she has any.
Whatever happens I hope it all works out for you
