Despite their best efforts, Fitz and Mellie can't hide the fact that their marriage is practically in ruins from the public. Their constant lack of public affection for each other is negatively impacting Fitz's image with voters.
Olivia identifies Fitz and Mellie's public image problems
Olivia identifies Fitz and Mellie's public image problems, telling them that they need to be more affectionate in public to win the voters and show off Fitz's more caring side. With the nomination on the line, Mellie and Fitz find a way to pretend to love each other again.