[joeysteele]

If Nikki had been saying this to someone like Cristian she would be likely all the bad names under the sun.

Because she is saying the 'lies' to Jack,she is likely wonderful.
She could have been honest to his face and showed her dislike to him rather than tell blatant lies to him.
That is far from being anyone nice at all.

Having said all that, the way he took it all in, despite hearing what she had said about him from the bunker,was near unbelievable.