Carol and Daryl go on a mission and find themselves at an old cabin.
Carol finds a note written by Daryl to someone called Leah, and he tells Carol everything.
He and Leah got into a relationship in the years following Rick's disappearance.
But it all imploded when Daryl wanted to go on a solo mission.
Leah had lost a lot of people and didn't want to lose someone else so she seemingly left the house and hasn't been seen or heard from since.
Carol and Daryl then get into a huge argument over the state of their relationship and Carol concedes that their relationship is over.
They then leave the cabin, proving that they don't know each other any longer and that they are probably not going to be friends again.