At this point, she doesn't have any reason not to trust Luthor.
Well, other than that he shot her and turned her into a whore, but I guess she has figured out ways to explain away both these occurances.
Since in the show Luthor never shot her and never turned her into a whore, she had not explained away such egregious actions against her on his part so at least she was not proactively excussing very obvious hurt to her from Luthor. Of course, she is not willing to actually consider Luthor more than a friend, so maybe I am being a little harsh on her.
