A few months after escaping from Mr Negative, Ms Positive thinks that her life is finally at peace and is doing better without him. She is happier, wiser, and stronger, actually. But then suddenly, there he is again, entering the picture. Now Mr Negative is slowly creeping his way toward her, and Ms Positive, with her overflowing thoughts about the bright side, has been somewhat helping him crawl back.
But then some people woke her up from stupor, which made her consider her options. Ms Positive can open the door and welcome him back, with another possible round of pain, confusion, and negativity, or close the door for good, save herself from another wave of destruction, and perpetually regret the day she locked the door.
She pondered and thought hard. Finally, she chooses the latter, but does the former.