Getty ImagesKevork Djansezian Emma Stone has been quietly dating Dave McCary of SNL since October of last year. The couple is extremely private and has shared little-to-no details about their relationship—save for a few date night photos here and there. But Stone’s boyfriend is extremely accomplished and has made a name for himself in the business behind the camera. Here, everything we know about Dave McCary. He’s a segment director for Saturday Night Live. McCary has been working for SNL …