by Larry FitzmauriceBuzzFeedBuzzFeed Staff First of all, let's get some facts on the record here: Cynthia Erivo has been dating Lena Waithe for at least a year, if not longer. Here's a pic of them together last February at the NAACP Image Awards. Aaron J. Thornton / Getty Images for BET Ariana Grande, on the other hand, has been dating Wicked co-star Ethan Slater since at least July of 2023.