Your girlfriend and yourself try to escape unseen, but fail. A group of Lector’s "guards" capture the two of you and, as aknowledgement for trying to be sneaky, you get the dubious honor of being personally collared by the mad genius, billionaire and would-be world-emperor. Naturally, the first to be put under the slave collar, a smirking Lector suavely claiming "Ladies first! I'm a gentleman, after all."
He didn't keep it long. As soon as the collar was clasped around her neck her eyes started to glow an electric blue, almost like the thing awoke latent powers in her which interfered with her enslavement. First she took control of Vic's giant robot, soon followed by all other peoples already collared. Then, through Vic's cerebral implants, that let him control his robot remotely and order his slaves around without speaking, downloaded all his knowledge from his brain to hers, before taking control of his body. His guards tried to kill your girlfriend but she was able to take control of their cybernetic enhancements too, forcing them to become simple spectators of their own life.
… At least for the few seconds they still lived, because your girlfriend forced each of them to put their gun under their jaws, and shoot.
THAT, is the first sign your girlfriend wasn't really herself anymore. That forceful awakening of her powers by an enslaving device must have scrambled her brain, unless it was a side effect of downloading all of Lector's knowledge into her brain. Her body goes in a flash, and one it dissipate, reveal what look like a copy of her made of a mix living electricity and just as living psychic ant telekinetic energies, floating above a small pile of cinders that most probably used to be her physical self.
You call her by her name, ask her if she’s okay, but her answer make your blood run cold. "Oh better than ever. After all, I’m finally free… Free from that fleshy prison we call bodies. Free of those accursed feelings they bestow upon us! Free of the so called "morality"! Free to turn all life in the universe into an extension of myself, bringing everlasting peace."
"And better yet," she added, grinning "I don’t even need the help of any gadget like those collars anymore." On those words, she floated in your direction, clearly intending to make you the first she would enslave by her own means.