@Josephpd5,
Something is wrong in your marriage.
I think it's wrong to have a fling, online or not. It's disrespectful. I couldn't stand knowing the one I love is talking to someone else in a sexual fantasy level....and I think most people wouldn't too.
How do you feel about it? Did you forgive her? What do you think of this situation?
You don't have to accept that...at all.