So why was Genevieve about to (SPOILER)...
...about to shoot Carter when she was in bed with him?
She was kneeling over him, and starting to pull a gun out of her stocking (which I don't remember her wearing when she came out of the bathroom). Then, the triad killers burst in, and Lee came to the rescue - and she never got to do whatever she was planning.
It was never explained, as far as I can tell.