Emma Stone was joined by her actor boyfriend, Andrew Garfield, at the “Saturday Night Live” after-party at Upper West Side Greek restaurant Loi on Saturday night. Spies said the couple, with Stone’s hair newly dyed blonde, “looked inseparable.” They were joined by a blonder Olivia Wilde with her boyfriend, “SNL” star Jason Sudeikis. Also there was a stunning Sofia Vergara, who had earlier hosted the show and received rave reviews, with boyfriend Nick Loeb.