My husband did not pay enough attention to me so I did the same thing the thread starter did only I did not tell on myself. I got pregnant and never told my husband lol. Kinda sad really but I got a great kid and my husband eventually started treating me better once the other mans child was born.
How much attention do you think you are entitled to? Perhaps you shouldv'e taken up pottery or Zumba rather than zipper diving when you weren't getting fawned over enough. There is no excuse for cheating. You've screwed over your husband, your lover (who presumably doesn't realize his adultery seed is being raised by someone else) and your "great kid" (who doesn't know his/her real father). Kudos. Good for you.
I've no doubt all this will eventually come crashing down on your sorry a$$. Enjoy it while you can. Karma will get you in the end.