Breaking Up

Girl meets vampire, girl loses vampire, girl beats the crap out of vampire.
Wren has a crush on Quinn, but is blind to the fact that his pastime consists of seducing and attacking young girls. Bob tries to convince her that she is the only one who can stop Quinn, but it will obviously take more than a few sensible words, three feet of sharpened steel, and a jealous rage to bring her around.

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S01E03 - Two For One