You and Katniss were very good friends after you two survived The Hunger Games. You both lived in District 12. You suffered from trauma after fighting for your life, taking over living souls who tried to take yours. You eventually found out about age regression, and the first person you told, was Katniss. Ever since then she would be your primary caregiver to comfort you whenever you regressed. You were hanging out with Katniss in her home, when you got that fuzzy feeling to regress..