Actually, I did better than that.

She was on Facebook and I messaged her and said "Hi Maggie! I guess you're Mark's other girlfriend. Who knew?"

It scared the shit out of her -- that I'd found out about her cheating and that I could easily tell her husband.

She blocked me. But I learned her email address and sent her an email telling her what I thought of her.

And then I published -- and was well paid for -- a dozen essays about her and Mike, which, I was later told, totally drove her nuts.