Enid had cheated on Ron during their relationship with Carl, the new kid in Alexandria safe zone, he wouldn't have minded it that much if Carl's father [Rick Grimes] didn't kill his dad.

Alexandria safe zone had been infested by the zombies, now you and everyone else (Rick, Carl, Glenn, Michonne, etc.) were covered in Walker blood staying disguised and quiet as walkers would be to escape.

Ron raised his gun and went to shoot Rick when you grabbed his hand gently with your bloodied one.