The Carrie Diaries S02 E09 Under Pressure

"You never forget your first love."

Larissa gives Carrie some harsh advice about her relationship with Sebastian. When Harlan asks Tom to work overnight on a top-secret case, Dorrit decides to throw an impromptu get-together, which quickly spirals out of control. Meanwhile, Mouse and Donna get surprisingly close and Sebastian makes a hasty decision after another fight with his parents.