Quote from Michael Scott in Gossip
Michael Scott: Well, it turns out that Teri was already suspicious, because she had caught Stanley and Cynthia a few months ago. So Stanley promised that he would stop, and he did, end of story. Well, not exactly. [outside, Stanley is battering Michael's Sebring with a crowbar] Uhh, Cynthia kept calling him, she would not stop calling him, and she was in love with him. Oh, and get this. Cynthia, also married. So, you can't stop love, I guess. And quite frankly, I don't think you should ever try.