Look, it doesn't really matter what we think - the OP has made her mind up and we must leave her to it.
I can only speak for myself and say that my advice is not based in some ivory tower but is rooted in real-life experience with a friend. My motive in this is to help the poster - certainly not for her to get her "come-uppance". I suspect her marriage will be impoverished by this experience and I worry that she will view her husband differently now. That this will impact on her sex life (which is really important to me) - but if the poster finds that this isn't the case, then that is wonderful.
And I agree with other posters - it all depends on the sort of marriage you have and want to have in the future. I agree that for some marriages, they can exist perfectly happily with secrets - but I happen to believe that marriages with real honesty reach a higher level of intimacy between the couple than those without honesty. I also know lots of marriages where the couple actually don't want that level of intimacy - in fact it would have them running for the hills.
And with the notable exception of Morris Zapp, who made the distinction, I agree totally with Mal - I believe the reaction to a man posting this would be very, very different. Women's infidelity is treated far more leniently on here than men's. I think if a man had written this post, there would be a few brave souls who would admit "I wouldn't want to know", but there would be far more saying "I have the right to know" and "you are denying your wife choices" etc.
There would also be several querying "but what's the underlying cause of this?" and loads saying "you'll do it again". Not to say the amount of posts telling the man that he was using his wife like an appliance and just wanted to keep being serviced
It's up to the poster ultimately and we can only wish her and her husband well. Her choices wouldn't be mine, but I guess we have to accept that all marriages are different.