Honestly I don't mean to sound like an aul one but she seems like someone who came from a broken home, always seems to be clinging on the same group of friends and always has to be as distasteful as possible. Probably grew up too quickly as a kid or became emotionally scarred at a very young age and to compensate as an adult is behaving recklessly and as irresponsible as possible to a point where that's all she knows and behaving like an adult is almost too much for her