She is irritating, but the one thing I liked in this ep was her insistence on carrying the gun and then freezing when she had to use it. It's a surprisingly realistic thing. I imagine a lot of people will see it as Ruby "being the girl" but it's more being human...and after that she pulled her shit together. I like her interaction with Mina; she needs to get over the pretty boy, 'cause Mina would be so much better for her :-)