While Sherry was trying to comfort Amber, Carl and Negan entered the room where they were both, the leader of the Saviors intended to discuss a very sensitive matter with Amber. Sherry tried to defend and excuse her friend, but Negan simply silenced her to continue, after witnessing Amber's suffering, Sherry witnessed how her lover, Mark, had her face burned by Negan himself, as punishment for having become involved with one of her wives.
