The story we were going with was...amateurish, really. She told the human that I was "malfunctioning", that my human-eradication protocols were on the blink and I was out of control. The finale of her little plan involved me cornering the human in a private room so she could swoop in at the last minute and "rescue" them.

[...]

So I locked her out of the room from the inside, told the human - and everyone watching at home, because of course this was televised! - about all the lies Dr. Alphys had been telling them, and proceeded to try to kill them. Genuinely this time.