she was up in the club way too early, so that's definitely a possibility. maybe she even lied to him about her age for the first month or so as they got to know each other. saying she was like 19 or 20 because she was worried he'd get spooked about her being underage. she's always been mature for her age, although it eventually became evident since she was still living at home and unable to spend many nights out with him thanks to her parents being ridiculously strict.