Honestly all three of them was kinda painfully stupid. She has to break up with that gangster guy first. Not when he came out of prison but when he started to abuse the money and situation. She shouldn't have to continue being a hookie after all. It is obvious to cause a trouble if she tries to kill every guy. The story would be more sophisticated if she only kills who tries to give her pain. And live a double life as regular coworker and hookie at night to clean the world from filth.
Disrespectful Bitch