They’re both cheating on each other, which isn’t as trifling as it sounds. I mean, two people cheating on each other is like when you and a bestie both have New Year’s resolutions to find better jobs and then on January 2, it all goes to shit because you both independently discover that there’s a Judge Joe Brown marathon on TV and decide it’s way more fun to watch that than it is to upload résumés to Monster.com. Then when you find out the other messed up, instead of getting mad, you just giggle and share a look like, “No one will ever get me the way that you do.”