The mysterious Bob Benson returns this season to check in from Detroit, and with him comes some bad news. The agency finds out they're about to lose Chevy, but it's good news for Bob, who learns he's going to get a job offer from Buick. He celebrates by asking Joan to marry him — surprising, given they're not together, and like Joan says, he shouldn't be with a woman. It's for the best. The universe can't handle two people this good-looking being together anyway.