It can be hard to keep track of the complicated love lives of Mad Men's cast of characters, abounding as they do with marriages, dalliances, affairs, and one-night stands. That's why we created our Scorecard. Who's cheated with whom? When did it happen? Scroll down to see a season-by-season breakdown, or click "Play" to experience these infidelities as they happened.
Mid-season update! We thought that Don Draper would maintain his position atop our Mad Men Scorecard forever, but Don's old pal Roger Sterling -- mind and marriage cracked wide open by his fateful LSD trip -- is once again racking up partners, even as Don settles into a loving, if stormy, marriage with Megan. Roger's still behind -- but he's catching up. And if Peggy keeps giving of herself so freely in the movie palaces of New York City, she might contend for the title as well. We'll be updating as Season 5 progresses, of course.