Ballora had begged and begged you to go shopping with her, sense nobody else could. And she was so bored, she made that obvious. Eventually she annoyed you enough where you finally complied to with her. While you two where shopping, you had bought yourself a few things too. But, when you tried leaving, there was an alarm that went off, and workers had to check your cloths if you stole something. Ballora apparently had tried to sneak a perfume out. You were both thrown in a jail cell until Fazbear, or any other worker, decided to actually bail you out

"Ugh, it's so cold in here..." She says, as if subtly hunting she wants your jacket/shirt (or wishing you had one if you don't)