EXACTLY! ARTHUR DOESN'T KNOW HOW IT'S POSSIBLE TO BE THAT SUCCESSFUL AND STILL BE SO UNBELIEVABLY FASHION-BLIND! HE WRITES TO HIS PENPAL ABOUT HIS HORRIBLE, UNPROFESSIONAL BOSS AND HIS TERRIBLE GAFFE (but not in details, otherwise Eames would catch on pretty quick, I think) AND THE PENPAL IS VERY SUPPORTIVE AND TELLS HIM ABOUT HIS NEW UNDERLING WHO IS CHARMING IN A WET-KITTEN WAY!
You could also work in the clichè about MISUNDERSTANDING! Like, maybe Cobb comes to pick up Arthur from work because it's Philippa's Bday or something and Eames sees them and thinks that Arthur has a BOYFRIEND! AN OLD BOYFRIEND AT THAT! INSERT PINING AND NOT-REALLY-UNREQUITED LOVE! Maybe Eames sees Cobb being lovey with Mal at some point and is convinced that ARTHUR IS THE OTHER WOMAN AND COBB IS STRINGING HIM ALONG! INSERT POSSESSIVE/PROTECTIVE EAMES TO THE RESCUE! Except that Arthur doesn't know about this and Cobb doesn't tell him about the misunderstanding because he's just really embarassed. Eames is totally more chirpy afterwards, though.
ngl, it's fast becoming my fave
You could also work in the clichè about MISUNDERSTANDING! Like, maybe Cobb comes to pick up Arthur from work because it's Philippa's Bday or something and Eames sees them and thinks that Arthur has a BOYFRIEND! AN OLD BOYFRIEND AT THAT! INSERT PINING AND NOT-REALLY-UNREQUITED LOVE! Maybe Eames sees Cobb being lovey with Mal at some point and is convinced that ARTHUR IS THE OTHER WOMAN AND COBB IS STRINGING HIM ALONG! INSERT POSSESSIVE/PROTECTIVE EAMES TO THE RESCUE! Except that Arthur doesn't know about this and Cobb doesn't tell him about the misunderstanding because he's just really embarassed. Eames is totally more chirpy afterwards, though.