"That's disgusting."

I agree. This was years ago - I wouldn't do it now as I have financial freedom and (probably) a higher standard of morals. But back then, keeping my employers satisfied so my sole source of income was safe, was a large motivator.

Have you notified his wife and apologized for lying to her? If not, you are still hurting her today.

No, and I'm not going to. I can't see how it would help anyone involved, especially several years on.

Anyway I don't even know who she is, or if they're even married any more.