she irritates me in exactly the same way that rose tyler and gwen cooper do: ie, 'oh look, she's doing something stupidly inadviseable and nosy and frankly a bit selfish (in this case, just to satisfy her own curiosity), but somehow or other we're supposed to see this as acceptable and even endearing because she's supposedly awesome in some way that's not at all apparent.'

you're absolutely allowed to like her, though. i suspect rusty will let you keep her, since he invariably seems to worship characters that make my fucking teeth hurt.

*puts a tasty tasty cookie on your pouty lower lip*