It is unknown exactly when Agron and Hoult broke up, but by July 2015, the actor started dating Mumford & Sons musician Winston Marshall, according to Us Weekly. Like her other relationships, Agron maintained privacy with Marshall, and the two secretly got engaged in December 2015, just months after they began their relationship.
By October 2016, the couple privately tied the knot in Morocco, as reported by Us Weekly. Agron and Marshall’s nuptials were short-lived, however, and by August 2020, the pair split for good. Us Weekly reported at the time that they had been living apart for nearly a year before the official split.