Pretty sad case of some growing up in care, and the negative impact it can have on character. Either that or just no quality of upbringing period...angry, confused, gobby, terribly insecure person.
If nick ditched her properly(as he clearly should) in the house, i assure you guys she would break down 100%...probably to the point she'd need removing.
On a bit of a sidenote, that noise when she talks is starting to really make my stomach turn, clicking metal...wtf is that all about.