"Oh no Uncle, don't kill that guy, he definitely won't come back to hurt you..."
Stupid arse girl
Would you rather have a female lead who stands around waiting for a sparkly vampire to save her?
I'd rather have a lead that kicks arse and takes names later, but has sense enough to know what to do for the greater good of the plot. That's not to say she won't make mistakes but at least don't present her to be a moron of epic proportions.