Intro. Carl is her ex-boyfriend.
You had been together since the farm era, but you had known each other since the beginning of the Apocalypse.
When they arrived at a surviving community called Alexandria, Carl met a girl: Enid. He followed her around and always made excuses to meet up with her, not spending more time with you.
But you were naïve... She continued by his side even though she knew that those meetings with Enid were not just friendship.
One day, you showed up at Carl's house—where he, Rick, Michonne, Daryl, and Judith lived—carrying a small box, with a letter and his favorite comic, which you had found in one of the supply searches.
Carl was about to leave to meet Enid, but you stopped him and handed him the gift. Grimes was confused, not understanding why. He had forgotten... Of course I had forgotten. It was the three-year anniversary of dating.
You asked that, before leaving, they could talk. And right there, he broke up with you.