Originally Posted by
Mathias 
I know you have good intentions, Indi. I'm sure you've always been told to admit when you're wrong, and "man up" in situations. However, by keeping this burden inside, I am being a man. It's the least I can do for her. Unburdening myself and telling her is by far the most SELFISH action I could take at this point.
Depends on your motives. If you're never planning on having a further relationship w/this lady, and assuming you aren't carrying somekind of disease from your cheating experience, then I agree with you that at this point it only serves to cause her pain.
However, if you ever want to get back w/this lady, then I would argue that you will need to give full disclosure. Most women would be more angry at the trust issue than the actual cheating events. But to not tell her would take away her right to make a decision about whether she would want to be with someone who would do such a thing.
There is lying outright & lying by omission. Don't delude yourself into thinking one is more noble than the other.