Popsugar Celebrity Oscars Who Is Brie Larson's Boyfriend, Alex Greenwald? Who Is Brie Larson's Beloved Fiancé? You Probably Already Know Him February 25, 2017 by Shannon Vestal Robson View On One Page Photo 11 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 And again, here he is showing his love and support for Brie when she won at the Spirit Awards in 2016. Previous Next Start Slideshow Brie LarsonCelebrity CouplesAward SeasonOscarsCelebrity FactsAlex Greenwald