@Marienusa,
I am assuming you are either the wife or the employee. If not, my answer is that this is none of your concern so why run around asking strangers this question?
If you are the employee, then shame on you for sending inappropriate photos and videos to a married man. Is it out of place for the wife to want you fired? Not in my book. And depending on the state or country you are in, you may have no recourse if you are fired.
If you are the wife, well, actually I think that is the least likely here. But, you have forgiven both of them and as long as they stop and you believe he has otherwise been faithful, then let it go.