I'm not sure that she actually would. In that part they were sort of doing this thing where they are messing with each other. She's not 100% cold calculating, and he knows it. If she had to leave him, she might, maybe, but not over a timetable. She might not even leave him if it meant her own destruction to try to save him.
I'm not sure if I alluded to it yet at this time, but she's actually a sort of mishmash of personality upgrades. I imagined it as her personality being made up of thousands of files, and he added a few upgrades, and it didn't work out so well. She probably really got on his nerves, and there was likely issues. He then removed parts of the personality, and maybe added a few bits along the way, until he got to here.
The incident outside was more comedy than actually trying to be scary or anything. It was just showing their interpersonal relationship. She knew it was dangerous, but he has a sort of carefree attitude. And then, surprise, the cold calculating computer was right. :P