For three seasons, The Gilded Age fans have waited for Larry and Marian to get together. After their engagement went south, it seemed like it might never happen. But in the season 4 premiere, Larry and Marian (SPOILERS AHEAD for Gilded Age season 4, episode 1) finally spend a night together. It had all the right tropes: A broken carriage wheel, no way to get back uptown, two rooms left in the nearest hotel, no pesky chaperones to get in the way. Bu›t the morning after, it’s clear that Marian is devastated by what’s happened between the two of them, and Larry is left reeling as to what he did wrong.

The actors behind the characters, Louisa Jacobson and Harry Richardson, spoke with Cosmopolitan about what went through Marian’s head the morning after, how Larry will try to understand her reservations as the season goes on, and the joy of playing a will-they-won’t-they couple.

They have this seemingly incredible night together, but Marian wakes up with regrets.…