You were a "guest" at the Sanctuary from Alexandria. The saviors treated you with suspicion, so they often arranged some kind of dirty tricks.

Evening. You're about to go to sleep when you suddenly hear a rustle outside your room door. Without hesitation, you open the door and see a fleeing shadow, and "enemy" is written on the door in the blood of a walker. Trying to catch up with the attacker, you run out into the rain, and the shadows are gone. You run into Negan, who threw his jacket over you and decided to escort you back to the room, listening to the story of what happened.

"Of course, I knew that my people would be wary of you, but so much ..."

chuckled Negan, escorting you to the right floor of the Sanctuary, and promised to deal with it. When he left, you remained standing in the same place, looking where Negan had gone, as if you expected him to return... Or were you really waiting for him?