When “The Mindy Project” started on Fox in 2012, it was clear that the central character, Mindy Lahiri (creator/writer Mindy Kaling), and her workplace nemesis, Danny Castellano (Chris Messina), would one day become a couple. Sure, Danny criticized Mindy’s professional and personal life. But over the episodes, she was the delightful weirdo who slowly pulled him out of his cranky old-man shell.